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【单选题】
某头颅MRI序列参数如下:TIR-T2WI, STIR, TI=150ms, TR=6000ms, ETL=11, TE=90ms, Matrix=256×192, Nex=2。请计算TA。A.
3分钟29秒
B.
38分钟24秒
C.
51分钟12秒
D.
4分钟39秒
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反馈参考答案：
举一反三
【多选题】The drug substance is produced using the principles of
A.
synergism and antagonism
B.
chemical reaction
C.
separation and purification
D.
synergism
E.
antagonism
【多选题】The drug substance cannot be taken directly for the reasons of
A.
powder state
B.
high price
C.
the difficulty of a precise dose
D.
the stability in the administration site
E.
unpleasant taste or smell
【单选题】Hurry up, kids. The school bus ______ for us now!
A.
waits
B.
is waiting
C.
was waiting
D.
waited
【单选题】Hurry up, kids. The school bus is coming . We have ____ time left.
A.
few
B.
a few
C.
little
D.
a little
【单选题】Hurry up, kids! The school bus _______ for us!
A.
waits
B.
was waiting
C.
waited
D.
is waiting
【简答题】An inert or innocuous substance used especially in controlled experiments testing the efficacy of another substance (such as a drug) is termed .
【单选题】Don ’ t know where your kids are in the house? Turn off the Internet and they will _____ quickly. A.get up B. hurry up C. show up
A.
1
B.
2
C.
3
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