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【单选题】
已知A( 10.00， 20.00)和B( 20.00， 30.00)，则DAB=( )。A.
14.14
B.
28.28
C.
42.42
D.
56.56
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举一反三
【单选题】电阻、二极管等都集成在一个芯片上的原件称为 。
A.
Transister
B.
Integrated Circuit
C.
Computers
D.
Vacuum Tube
【单选题】Man: Betty, how was your trip to the museum with tom this afternoon? Woman: Don't ask me. Question: What does the woman mean?
A.
Something about the museum interested her.
B.
Something was wrong with the trip.
C.
She doesn't know anything about the museum.
D.
She doesn't want to answer the man's question.
【单选题】The museum is quite far. It will take you half __________ hour to go there by __________ bus.
A.
a ; /
B.
an ; a
C.
a ; /
【判断题】p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px SimSun; color: #000000} 莫尔法测定氯离子时,铬酸钾的实际用量为0.02mol/L。
A.
正确
B.
错误
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