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【多选题】
下列事件中,使产品X的供给增加的有()
A.
生产X的技术有重大革新
B.
生产X的人工和原材料价格下降了
C.
预计产品X的价格会上升
D.
在产品X的行业内,企业数目减少了
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参考答案：
举一反三
【单选题】—____ does Mike go to work? —He takes the subway.
A.
What
B.
How
C.
Where
D.
Why
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【简答题】听力(15分) (一)听句子,选择正确的图片。(每个句子读两遍。) (二)听对话,选择正确的答案。(每段对话读两遍。) 6.How did Mike go to school five years ago? A.By bike. B.On foot. C.By bus. 7.What's wrong with Sonia? A.She doesn't have enough money to b...
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【简答题】Mike had to walk to school． Mike had to go to school ______.
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【简答题】Mike had to walk to school. Mike had to go to school ________.
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【判断题】频率为50Hz的正弦交流电,当U=220V,φ u0 =60° 它的表达式为 。 ( )
A.
正确
B.
错误
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【单选题】《1932年华沙—牛津规则》主要是为了解释( )术语的
A.
FOB
B.
CIF
C.
CFR
D.
FAS
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【简答题】频率为 50Hz 的正弦交流电,当 U=220V , =π/3 , I=10A , =-π/6 时,它们的表达式为 u= V , i= A
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【单选题】How does Mike go to school?
A.
By bus.
B.
By subway.
C.
By bike.
查看完整题目与答案
【单选题】阅读理解,请选出合适的答案 How did Mike go to Richmond? Mike worked in an office in a small town. One day his boss said to him, “Mike,I want you to go to Richmond, to an office there, to see Mr Shute. Here’s...
A.
By car
B.
By train
C.
By ship
D.
./
查看完整题目与答案
【简答题】频率为50Hz的正弦交流电,当U=220V,电压的初相角为60°,I=10A,电流的初相角为-30°时,它们的表达式为u=( )V,i=( )A,u与i的相位差为( )。
查看完整题目与答案
相关题目：
【单选题】—____ does Mike go to work? —He takes the subway.
A.
What
B.
How
C.
Where
D.
Why
查看完整题目与答案
【简答题】听力(15分) (一)听句子,选择正确的图片。(每个句子读两遍。) (二)听对话,选择正确的答案。(每段对话读两遍。) 6.How did Mike go to school five years ago? A.By bike. B.On foot. C.By bus. 7.What's wrong with Sonia? A.She doesn't have enough money to b...
查看完整题目与答案
【简答题】Mike had to walk to school． Mike had to go to school ______.
查看完整题目与答案
【简答题】Mike had to walk to school. Mike had to go to school ________.
查看完整题目与答案
【判断题】频率为50Hz的正弦交流电,当U=220V,φ u0 =60° 它的表达式为 。 ( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】《1932年华沙—牛津规则》主要是为了解释( )术语的
A.
FOB
B.
CIF
C.
CFR
D.
FAS
查看完整题目与答案
【简答题】频率为 50Hz 的正弦交流电,当 U=220V , =π/3 , I=10A , =-π/6 时,它们的表达式为 u= V , i= A
查看完整题目与答案
【单选题】How does Mike go to school?
A.
By bus.
B.
By subway.
C.
By bike.
查看完整题目与答案
【单选题】阅读理解,请选出合适的答案 How did Mike go to Richmond? Mike worked in an office in a small town. One day his boss said to him, “Mike,I want you to go to Richmond, to an office there, to see Mr Shute. Here’s...
A.
By car
B.
By train
C.
By ship
D.
./
查看完整题目与答案
【简答题】频率为50Hz的正弦交流电,当U=220V,电压的初相角为60°,I=10A,电流的初相角为-30°时,它们的表达式为u=( )V,i=( )A,u与i的相位差为( )。
查看完整题目与答案
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