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【多选题】
使用分光光度计进行光谱扫描完成后,返回初始界面需要按哪些按键?A.
RETURN
B.
F3
C.
MODE
D.
AUTO ZERO
E.
GO TO WL
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举一反三
【单选题】— ______ Pat his friend? — Yes, ______ [ ]
A.
Is, he is
B.
Is, Pat is
C.
Are, it is
D.
Do, it's
【单选题】关于单端反激电路的变压器,下列说法错误的是( )
A.
当主开关导通时，电源通过变压器向负载传送能量
B.
变压器在输入电源和输出负载之间起到隔离作用
C.
变压器还需要起到储能元件的作用
D.
变压器两绕组的同名端异侧，可以实现输出电压与输入电源同极性
【单选题】以下程序的输出结果为( ) import re str="what's the time?" pat1="wh.+a" rst1 = re.search(pat1,str) print(rst1)
A.
None
B.
wha
C.
what's the time？
D.
what
【简答题】完形填空。 Sam and Pat are 1 . They're in 2 class. Sam works harder and studies better 3 Pat. One day the teacher asks the students 4 a composition. The name of the composition is 'My mother'. Sam 5 a comp...
【单选题】Aunt Pat smiled at her little niece and ______ her to eat.
A.
bid
B.
bade
C.
bided
D.
bidding
【单选题】—Is that Helen’s aunt? --- .That is Mary’s aunt.
A.
Yes,she is
B.
No,it isn’t
C.
Yes,it is
D.
No,he isn’t
【简答题】Aunt Pat's rough, red hands' ▁▁▁a life of hard physical labor.
【简答题】thrust overseas fertile split keen sustain grip reflect identify margin previous hesitate bud whichever slim glow 2. Aunt pat’s rough,red hands __________ a life of hard physical labor.
【单选题】Last night, I called at ______. [ ]
A.
my aunt
B.
home of my aunt
C.
aunt of mine
D.
my aunt’s
相关题目：
【单选题】— ______ Pat his friend? — Yes, ______ [ ]
A.
Is, he is
B.
Is, Pat is
C.
Are, it is
D.
Do, it's
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