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【多选题】
多选题13:统计分组的含义是( )A.
将总体区分为性质相同的若干部分
B.
将总体区分为性质相异的若干部分
C.
将性质相同的总体单位组合起来
D.
将性质不同的总体单位组合起来
E.
将不同总体的性质相同部分组合起来
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举一反三
【简答题】We excessively use our washing machine until it is worn out _____ repair.
【简答题】To use a worn-out phrase, "Safety on the job is everyone's responsibility".
【单选题】The letter ______ three days ago and it ______ yesterday. [ ]
A.
had post, had arrived
B.
was posted, arrived
C.
posted, arrived
D.
had been posted, was arrived
【单选题】、2011U1-107男,55岁。间断咳嗽咳痰,反复发作30年,近2年来渐觉气短,发现高血压3年,吸烟36年,2包/日。查体:心肺无明显阳性体征,心脏彩超未发现异常,为明确诊断首选的检查是
A.
胸部CT
B.
肺功能
C.
运动心肺功能
D.
冠状动脉造影
E.
核素心肌显影难度
【单选题】It's a worn-out society theory. We seldom use it now.
A.
badly used
B.
badly damaged
C.
badly tired
【单选题】The use of standard components makes ()easier when they are worn.
A.
replacement
B.
place
C.
repair
D.
modification
【单选题】蚂蚁的食性复杂,一般来说比较低级的种类为 或 ,而比较高级的种类为 。
A.
肉食性、杂食性、植食性；
B.
单食性、寡食性、多食性；
C.
植食性、肉食性、杂食性；
D.
植食性、杂食性、肉食性
【单选题】Franklin compared himself to a worn-out carpet in order to show that he was too exhausted to be of any use to his country.
A.
Y
B.
N
C.
NG
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