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【多选题】
以下哪些方法主要用于研究遗传和环境在犯罪行为产生影响()
A.
双生子研究
B.
收养子女研究
C.
观察研究
D.
个案研究
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举一反三
【简答题】The biggest obstacle to energy transition is that the present energy system is too expensive to replace. 查看材料
【单选题】Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, __________at the other store.
A.
anyone
B.
the others
C.
that
D.
the ones
【单选题】The performance of this reasonably priced digital camera is _____ in quality to that of more expensive ones.
A.
beneficial
B.
fundamental
C.
comparable
D.
competitive
【单选题】A:Which of those electronic dictionaries do you like most? B:().They are both expensive and of little use.
A.
Neither
B.
None
C.
All
D.
both
【单选题】Health Care in the US Health care in the US is well-known but very expensive. Paying the doctor's bill after a major illness or accident can cost hundreds of thousands of dollars. In the US, a person'...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】有4位举重运动员的体重分别为60、61、62、63公斤;另4位儿童的体重分别为15、16、17、18公斤;则举重运动员体重的变异程度与4位儿童体重变异程度关系
A.
前者大于后者
B.
后者大于前者
C.
两者相等
D.
两者无关
【单选题】63公斤;另4位儿童的体重分别为15、16、17、18公斤;则举重运动员体重的变异程度与4位儿童体重变异程度关系
A.
前者大于后者
B.
后者大于前者
C.
两者相等
D.
两者无关
【单选题】能正确表示条件x≥y≥z的C语言表达式是:
A.
x>=y&y>=z
B.
x>=y&&y>=z
C.
x>=y||y>=z
D.
x>=y AND y>=z
【单选题】能正确表示条件x≥y≥z的C语言表达式是( )。
A.
(x>=y)&(x>=z)
B.
(x>=y)&&(y>=z)
C.
(x>=y).AN
【单选题】It is reported that this medicine is _______ against lung cancer.
A.
economic
B.
easy
C.
expensive
D.
effective
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