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【单选题】
肺结核的传播途径不包括:
A.
吸入结核病人咳嗽、打喷嚏时喷出的带菌飞沫
B.
经消化道进入体内
C.
吸入排菌结核病人的痰飞沫
D.
输血
E.
饮用未经消毒的结核病牛的牛乳
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举一反三
【简答题】Coupons should be thrown away because__________.
【单选题】计算病情指数,首先对病害发生的严重程度进行 ( ) 。
A.
比较
B.
分级
C.
计算
D.
分析
【简答题】A.kept B.pulled C.thrown
【单选题】Why is the rubbish still here? It ought to yesterday.()
A.
be thrown away
B.
have thrown away
C.
have been thrown away
D.
throw away
【单选题】Factories must clean their water ______.
A.
before it is thrown away
B.
when it is thrown away
C.
after it is thrown away
【判断题】在红外光谱中C-H,C-C,C-O,C-Cl,C-Br键的伸缩振动频率依次增加。()
A.
正确
B.
错误
【单选题】H 2 O在红外光谱中出现的吸收峰数目为(    )。
A.
3  
B.
4  
C.
5  
D.
2
【单选题】The sunlight is white and blinding, ____ hard-edged shadows on the ground. A. throwing B. being thrown C. to throw D. to be thrown
A.
throwing
B.
being thrown
C.
to throw
D.
to be thrown
【单选题】We’ve never seen_____ exciting film before. [     ]
A.
such
B.
so an
C.
such an
D.
so
【单选题】Seven billion drink cans ____ in Britain each year.
A.
  will be thrown away   
B.
  be thrown away    
C.
  are thrown away
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