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【单选题】
消力池的主要作用是()
A.
消能、防渗
B.
防冲、防渗
C.
消能、防冲
D.
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参考答案:
举一反三
【单选题】统计学中把样本的统计指标统称为
A.
样本
B.
误差
C.
统计量
D.
变量
E.
参数
【单选题】奥尔波特将一个最典型、最有概括性并对一个人的各方面行为均产生影响的特质称为( )
A.
共同特质
B.
中心特质
C.
首要特质
D.
动力特质
【判断题】材料的刚度越大说明材料抵抗塑性变形的能力越强,越不容易产生塑性变形。
A.
正确
B.
错误
【单选题】One of the most interesting paradoxes(矛盾) in America today is that Harvard University, the oldest institution of higher learning in the United States, is now engaged in a serious debate about what a u...
A.
overcome the widespread drag dependency
B.
take an nerve part in solving society's ills
C.
support our old and established institutions
D.
become involved in politics
【单选题】One theory, ________ suggested by Harvard University, is that humans began cooking their food, thereby releasing nutrients locked in the raw food and reducing the time needed to chew it.
A.
which
B.
as
C.
that
D.
what
【单选题】The two Harvard economists note in their study that, for much of the 20th century,
A.
enrollment kept decreasing in virtually all American colleges and universities
B.
the labor market preferred high-school graduates to college graduates
C.
competition for university admissions was far more fierce than today
D.
the gap between the earnings of college and high-school graduates narrowed
【判断题】由于机油粗滤器串联于主油道中,所以一旦粗滤器堵塞,主油道中机油压力 便会大大下降,甚至降为零
A.
正确
B.
错误
【单选题】发酵法制备药物时,适宜的环境温度是()
A.
30℃~37℃
B.
10℃~17℃
C.
20℃~27℃
D.
40℃~45℃
E.
45℃~50℃
【单选题】奥尔波特将一个最典型、最有概括性并对一个人的各方面行为均产生影响的特质称为( )
A.
共同特质
B.
核心特质
C.
首要特质
D.
动力特质
【判断题】由于机油粗滤器串联于主油道中,所以一旦粗滤器堵塞,主油道中机油压力便会大大下降,甚至降为零。
A.
正确
B.
错误
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