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【简答题】小题1:According to the key points, what’s the searching area for the missing plane? A．In the southern India Ocean. B．In the water area around Australia. C．In the water area in the southern pacific ocean...
【单选题】( ) 是评价群体摄入量的正确说法。
A.
以RNI作为切点，将低估人群营养素摄入不足的比例
B.
食物频数问卷资料可用于评价群体摄入量是否适宜
C.
锌摄入不足的概率可以使用EAR切点法进行评价
D.
能量摄入不足的概率可以使用EAR切点法进行评价．
【单选题】What’s mean of “Approach” signal aspects ?
A.
tell the train to proceed
B.
tell engineers to move at restricted speed.
C.
tell engineers stop immediately .
D.
tell engineers to reduce its speed to 35miles per hour and prepare to stop at the next signal.
【单选题】What’s mean of “restricting” signal aspects ?
A.
indicates that the train may proceed at restricted speed.
B.
indicates that the train may proceed.
C.
indicates that the train stop immediately .
D.
indicates that the train should reduce its speed to 35miles per hour and prepare to stop at the next signal.
【简答题】听力。 1. What’s the probable relationship between the speakers? A. Doctor and patient. B. Operator and caller. C. Customer and repairman. 2. How many cities has the man traveled to according to the conv...
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