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【单选题】
PLC的一个扫描周期的典型值大约是 ( )。
A.
1024s
B.
1s
C.
100ms
D.
1 min
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参考答案：
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【简答题】It ’ s easy to fall into a pattern of________________ (procrastinate).
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【简答题】唐朝文明继承创新，兼收并蓄，在交流中影响了世界，也丰富了自己。阅读以下材料后判断： 唐的繁荣是在隋的基础上不断继承创新的结果。隋朝开通的大运河，将长江南北的经济更紧密地联结起来，唐朝受惠于这条运河很多。唐承隋科举制并有所变革，使大批出身庶族的才俊之士得以进入仕途，为唐代文化带来新的面貌。 唐文化具有兼收并蓄的时代精神。唐朝与突厥、吐蕃等民族频繁交往，各少数民族的文化，经过吸收、改造、创新，成为唐文...
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【简答题】阅读理解 Many people catch a cold in the springtime or fall. It makes us wonder… if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There are act...
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【简答题】李白、杜甫、白居易是唐朝诗人中成就和影响最为突出的代表。阅读以下材料后判断： 唐的繁荣是在隋的基础上不断继承创新的结果。隋朝开通的大运河，将长江南北的经济更紧密地联结起来，唐朝受惠于这条运河很多。唐承隋科举制并有所变革，使大批出身庶族的才俊之士得以进入仕途，为唐代文化带来新的面貌。 唐文化具有兼收并蓄的时代精神。唐朝与突厥、吐蕃等民族频繁交往，各少数民族的文化，经过吸收、改造、创新，成为唐文化中色...
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【单选题】________5________ Warn kids not to eat any treats before returning home. And throw away any homemade treats if they find treats are torn without being packed.
A.
Halloween candy safety.
B.
Pumpkins are heavy, even for adults.
C.
Because it ’ s easy for them to fall down.
D.
No child should go trick-or-treating alone.
E.
Too small costumes make your kids look strange.
F.
If you have time, you can go out and ask for candy with younger kids.
G.
The following simple tips can ensure kids ’ safety this Halloween season.
查看完整题目与答案
【单选题】She was quite sure that she ________ the door before she left the office
A.
would lock
B.
will lock
C.
has locked
D.
had locked
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【单选题】Costume safety. Put reflective strips( 反光条纹 ) on the front and back of costumes to make them more easily noticed to drivers. Your children ’ s costumes shouldn ’ t be too large for them. ______3______...
A.
Halloween candy safety.
B.
Pumpkins are heavy, even for adults.
C.
Because it ’ s easy for them to fall down.
D.
No child should go trick-or-treating alone.
E.
Too small costumes make your kids look strange.
F.
If you have time, you can go out and ask for candy with younger kids.
G.
The following simple tips can ensure kids ’ safety this Halloween season.
查看完整题目与答案
【单选题】She was quite sure that she _______ the door before she left the office.
A.
will lock
B.
has locked
C.
would lock
D.
had locked
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【单选题】She was quite sure that she _______ the door before she left the office.
A.
will lock
B.
would lock
C.
has locked
D.
had locke
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相关题目：
【简答题】It ’ s easy to fall into a pattern of________________ (procrastinate).
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【简答题】The south and east of the Great Lakes is famous for the huge amounts of snow it receives. When the snow starts to fall every year,　people start discussing the phrase “lake-effect snow”. Lake-effect sn...
查看完整题目与答案
【简答题】唐朝文明继承创新，兼收并蓄，在交流中影响了世界，也丰富了自己。阅读以下材料后判断： 唐的繁荣是在隋的基础上不断继承创新的结果。隋朝开通的大运河，将长江南北的经济更紧密地联结起来，唐朝受惠于这条运河很多。唐承隋科举制并有所变革，使大批出身庶族的才俊之士得以进入仕途，为唐代文化带来新的面貌。 唐文化具有兼收并蓄的时代精神。唐朝与突厥、吐蕃等民族频繁交往，各少数民族的文化，经过吸收、改造、创新，成为唐文...
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【简答题】阅读理解 Many people catch a cold in the springtime or fall. It makes us wonder… if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There are act...
查看完整题目与答案
【简答题】李白、杜甫、白居易是唐朝诗人中成就和影响最为突出的代表。阅读以下材料后判断： 唐的繁荣是在隋的基础上不断继承创新的结果。隋朝开通的大运河，将长江南北的经济更紧密地联结起来，唐朝受惠于这条运河很多。唐承隋科举制并有所变革，使大批出身庶族的才俊之士得以进入仕途，为唐代文化带来新的面貌。 唐文化具有兼收并蓄的时代精神。唐朝与突厥、吐蕃等民族频繁交往，各少数民族的文化，经过吸收、改造、创新，成为唐文化中色...
查看完整题目与答案
【单选题】________5________ Warn kids not to eat any treats before returning home. And throw away any homemade treats if they find treats are torn without being packed.
A.
Halloween candy safety.
B.
Pumpkins are heavy, even for adults.
C.
Because it ’ s easy for them to fall down.
D.
No child should go trick-or-treating alone.
E.
Too small costumes make your kids look strange.
F.
If you have time, you can go out and ask for candy with younger kids.
G.
The following simple tips can ensure kids ’ safety this Halloween season.
查看完整题目与答案
【单选题】She was quite sure that she ________ the door before she left the office
A.
would lock
B.
will lock
C.
has locked
D.
had locked
查看完整题目与答案
【单选题】Costume safety. Put reflective strips( 反光条纹 ) on the front and back of costumes to make them more easily noticed to drivers. Your children ’ s costumes shouldn ’ t be too large for them. ______3______...
A.
Halloween candy safety.
B.
Pumpkins are heavy, even for adults.
C.
Because it ’ s easy for them to fall down.
D.
No child should go trick-or-treating alone.
E.
Too small costumes make your kids look strange.
F.
If you have time, you can go out and ask for candy with younger kids.
G.
The following simple tips can ensure kids ’ safety this Halloween season.
查看完整题目与答案
【单选题】She was quite sure that she _______ the door before she left the office.
A.
will lock
B.
has locked
C.
would lock
D.
had locked
查看完整题目与答案
【单选题】She was quite sure that she _______ the door before she left the office.
A.
will lock
B.
would lock
C.
has locked
D.
had locke
查看完整题目与答案
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