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【简答题】
型钢符号I28a中的符号含义为，I：______28：______，a：______。
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皮皮学刷刷变学霸
举一反三
【单选题】—Tom looks very sad. What’s wrong _______ him? —An accident happened _______ his father this morning.
A.
to; with
B.
with; to
C.
for; to
D.
with; for
【简答题】I will give you his l______________(座机)number.
【简答题】某放大电路的电压放大倍数为1000倍,相当于____ dB;电压放大倍数为100倍,相当于____ dB。
【简答题】One day, little Roy was ill. So his mother took him to the clinic( 诊所 ). A doctor examined him and said : “ Well, boy, there is something wrong with you. I am afraid you need to get injections ( 输液 ) ...
【单选题】Tom got nothing in______ for her kindness,_____ made him very sad.
A.
award; as
B.
reward; which
C.
prize; which
D.
medals; as
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