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【单选题】
已知图示电路中的U S1 、U S2 和I均为正值,则供出功率的电源是( )。A.
电压源U S1
B.
电压源U S2
C.
两者都不发出功率
D.
电压源U S1 和U S2
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【单选题】The sweater can’t ______ in the machine.
A.
wash
B.
washed
C.
be washed
D.
be washing
【单选题】The machine is so old ___ it can’t be used any more ___ some of its parts are changed.
A.
as, unless
B.
that, unless
C.
that ,if
D.
whether, or
【简答题】A.Tey can’t fit into the machine． B.1I?hey have not been delivered yet． C.They were sent to the wrong address． D.They were found to be of the wrong type.
【单选题】The machine can’t be made perfect overnight; in fact it should be improved___________.
A.
one by one
B.
step by step
C.
place by palce
D.
one after another
【简答题】Yaw
【单选题】The machine can’t be made perfect overnight； in fact it should be improved ______.
A.
one by one
B.
step by step
C.
place by place
D.
one after another
【单选题】—With the machine going on and on, I just can’t focus on my study./ —_______. Let’s go outside and play football instead.
A.
Same here
B.
Don’t push me too hard
C.
Please be more patient
D.
I don’t think so
【单选题】根据x的取值给y赋值,如果x大于5,则y被赋值为True,否则被赋值为False。下列不能实现上述功能的语句为( )。
A.
If x<5 Then y＝False Else y＝True< /div>
B.
If x>5 Then y＝True Else y＝False End If
C.
y＝IIf(x>5，True，False)
D.
If x>5 Then y＝ True Else y＝ False
【简答题】Complete the sentences with the words below: receipt exchange return employee refund service policy items 1. I can’t give you your money back, but you can ________ this shirt for...
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