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【单选题】
主电路的标号在电源开关的出线端按相序依次编号为( )。A.
U1、V1、W1
B.
1U、1V、1W
C.
U11、V11、W11
D.
U、V、W
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反馈参考答案：
举一反三
【判断题】Fiona hasn’t sent the sales report to Martin because she’s been lazy lately.
A.
正确
B.
错误
【单选题】Speaker A: I sent a package to Dallas two days ago and it still hasn t arrived. My tracking number is 641-24. Speaker B: Ok, Mr. Smith.______but our delivery person said that there was no such address...
A.
Don't be angry,
B.
Stay calm,
C.
Thanks for asking me,
D.
We attempted to deliver it,
【单选题】The United States up its satellite until January 31,1958. [ ]
A.
sent
B.
didn't send
C.
hasn't sent
D.
wasn't sent
【单选题】–John. Father is not feeling well. --I know. A doctor has been sent _______. But he hasn’t turned _______ yet.
A.
for; up
B.
out’ up
C.
for; on
D.
out; on
【多选题】假设当前页面为`http://x.com/bbs/index.html`,以下哪几项url是等价的:
A.
link
B.
link
C.
link
D.
link
E.
link
F.
link
G.
link
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