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【判断题】
温莪术中所含有的挥发油成分具有抗癌活性。 A. 对 B. 错A.
正确
B.
错误
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举一反三
【简答题】Similar to tobacco addict, which illnesses are marijuana smokers vulnerable to?
【单选题】Opponents of cigarette taxes often argue that tobacco and marijuana are substitutes so that high cigarette prices
A.
encourage marijuana use, and the evidence supports this argument.
B.
encourage marijuana use, but the evidence does not support this argument.
C.
discourage marijuana use, and the evidence supports this argument.
D.
discourage marijuana use, but the evidence does not support this argument.
【多选题】按照《1990年美国对外贸易定义修订本》的规定，后面必须加上“Vessel”才能与《2000通则》种的解释相同的术语有（）
A.
EXW
B.
FOB
C.
DES
D.
FAS
E.
CFR
【单选题】边沿D触发器逻辑符号如下,其输出状态变化应该发生在时钟CP( ),若D=1,则时钟作用下,输出Q为( )。
A.
上升沿，1
B.
下降沿，1
C.
上升沿，0
D.
下降沿，0
【单选题】Survey results indicate that smoking and alcohol and marijuana use increased among residents of Manhattan during the 5-8 weeks after the terrorist attacks on the World Trade Centre which took place on...
A.
alcohol
B.
marijuana
C.
cigarettes
D.
cocaine
【单选题】In the case of the use of marijuana, which of the following statements is true?
A.
There is no conflicts concerning the use of marijuana between state laws and the federal law.
B.
The federal prosecutors can restrain the state marijuana business even if it is legal in that state.
C.
The federal prosecutors have no right to regulate state marijuana business if it’s legal in that state.
D.
The federal government’s attitude towards marijuana remains the same at all times.
【单选题】边沿 D 触发器逻辑符号如下,其输出状态变化应该发生在时钟 CP( ) ,若 D=1 ,则时钟作用下,输出 Q 为( )。
A.
上升沿， 1
B.
上升沿， 0
C.
下升沿， 1
D.
下升沿， 0
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