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【单选题】
根据离心风机性能曲线可以看出,我们判断在启动离心风机时,应关闭风机出口阀门,以减少启动电流,保护电机。根据是?A.
离心风机性能曲线中,流量是0时,功率N最小,因而启动电流最小
B.
离心风机性能曲线中,流量是0时,压头P最大,因而启动电流最小
C.
离心风机性能曲线中,流量是0时,效率η最小,因而启动电流最小
D.
以上都不对
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【单选题】(13—15题共用题干)病人张某,48岁,企业老总,因工作需要经常加班熬夜,在外应酬,喜食油膩的高蛋白、高脂肪食物,并大量吸烟、饮酒,近来发现体重迅速增加,体力和精力降低。 对于该病人,最主要的学习需求是?
A.
如何减轻工作强度
B.
如何戒烟、戒酒
C.
如何建立正确的生活方式和行为习惯
D.
怎样快速减肥
E.
肥胖的不良后果
【单选题】The Supreme Court ______ the judgement of the lower court in that case last week.
A.
amplified
B.
affirmed
C.
ascended
D.
applauded
【多选题】Justices of the United States Supreme Court __________.
A.
are appointed by the President with Senate confirmation
B.
are elected from state supreme courts with a term of four years
C.
can collectively decide upon cases about the interpretation of the Constitution
D.
can be removed with new appointments of the President
E.
are members of the only court specifically created by the Constitution
【单选题】__________ argues cases for the government before the Supreme Court.
A.
President of the United States
B.
Chief Justice of Supreme Court
C.
Solicitor General
D.
Attorney General
【单选题】关于早产儿特点,下列哪项是错误的:
A.
易发生低血糖．低血钙和低血钠症
B.
易出现晚期酸中毒
C.
呼吸暂停多发生在生后15天内，都为生理性
D.
肝功不成熟，生理黄疸重
E.
水需要量相对大,每天120-150mL/kg
【单选题】关于早产儿特点，下列哪项是错误的（）
A.
出生体重<2500g
B.
皮肤红嫩，胎毛多，足纹少
C.
呼吸不规则，常出现呼吸暂停
D.
生理性黄疸持续时间较足月儿长
E.
肌张力较高
【单选题】病人张某,48岁,企业老总,因工作需要经常加班熬夜,在外应酬,喜食油腻的高蛋白、高脂肪食物,并大量吸烟、饮酒,近来发现体重迅速增加,体力和精力降低。对该病人,适宜的健康教育方法为
A.
个别会谈
B.
小组讨论
C.
阅读指导
【单选题】--What do you think of maths? --My favorite. It’s ______ for me to study of all the subjects in school.
A.
more difficult
B.
the most difficult
C.
less difficult
D.
the least difficult
【单选题】— Neither Danny nor Brian _____ at schoo1. What's the matter with them? — I don't know. Let's phone them. [ ]
A.
is
B.
isn't
C.
are
D.
aren't
【单选题】What does the case Hart cited in an Australia court illustrate?
A.
The Supreme Court will weigh immediately on the issue.
B.
American online publishers are confronted with more legal difficulties.
C.
Internet defamation has been condemned and made illegal.
D.
American companies are relieved of their liability in other countries.
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