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【单选题】
在研究设计过程中,应充分考虑(),在诸如分组、例数、采用指标、数据表达、误差控制等方面,预先考虑研究结束后的数据统计方法以及这些方法在设计时需要注意的问题。
A.
科学性原则
B.
创新性原则
C.
统计学原则
D.
规范性原则
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举一反三
【单选题】下列集装箱的系固索具中,____能够防止集装箱倾覆。1底座扭锁2桥锁3高度补偿器4定位锥5锥板6绑扎杆和花篮螺丝
A.
①②④⑤
B.
①⑥
C.
①②⑤
D.
②⑤⑥
【多选题】如果未发生伤病,进行以下哪几级防护,按顺序选择:
A.
早期诊断
B.
治疗康复
C.
健康促进
D.
特殊防护
E.
降低损害
【单选题】Which of the following is NOT true according to the author?
A.
The renovation project cost 300 million yuan.
B.
The temple was once a part of Beijing No. 159 Middle School.
C.
Those parts of the temple too destroyed to repair are still them.
D.
The temple was built about 470 years ago.
【单选题】Which of the following is NOT true according to the author?
A.
The renovation project cost 300 million yuan.
B.
The temple was once a part of Beijing No. 159 Middle School.
C.
Those parts of the temple too destroyed to repair are still there.
D.
The temple was built about 470 years ago.
【单选题】紫外可见分光光度法的波长范围()
A.
200-400nm
B.
200-750n m
C.
400-750nm
D.
800nm以上
【单选题】下列集装箱的系固索具中,( )能够防止集装箱倾覆。1扭锁;2桥锁;3高度补偿器;4定位锥;5锥板;6绑扎杆和花篮螺丝。
A.
①②④⑤
B.
①⑥
C.
①②⑤
D.
⑤⑥
【单选题】紫外一可见分光光度法的紫外一可见光的波长范围为( )
A.
200~400nm
B.
1 3.6~400nm
C.
200~760nm
D.
400~760nm
【单选题】紫外—可见分光光度法的紫外—可见光的波长范围为()
A.
200~400nm
B.
13.6~400nm
C.
200~760nm
D.
400~760nm
【单选题】The Daily Brew has a debt-equity ratio of 0.64. The firm is analyzing a new project which requires an initial cash outlay of $420,000 for equipment. The flotation cost is 10 percent for equity and 6 p...
A.
$3 65 , 768
B.
$ 4 68, 342
C.
$45 8 , 711
D.
$4 32 , 465
【简答题】进口配额制主要包括全球配额和 。
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