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【判断题】
关系模型的实体完整性约束要求主码属性不能取 null 值。
A.
正确
B.
错误
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举一反三
【简答题】Tanya German very well.
【单选题】--You do a very good job in German translation! --Thanks. I ______ German in Zhejiang University for four years!
A.
was studying
B.
study
C.
studied
D.
had studied
【单选题】This week marks the 10th anniversary of the Alar apple scare, in which many American consumers were driven into a panic following the release of a report by an environmental organization claiming that...
A.
scientists warned that apples were dangerous
B.
many school children became ill after eating apples
C.
it was reported that apples were harmful to health
D.
apples were discovered to have too much pesticide
【判断题】桌类家具的历史更为悠久,案类家具有桌类家具发展而来。()
A.
正确
B.
错误
【单选题】用水平力 把物体压在竖直墙壁上静止不动,设物体受墙的压力为 ,摩擦力为 ,则当水平力 增大时,下列说法中正确的是:
A.
增大, 增大
B.
增大, 不变
C.
增大, 减小
D.
条件不足,不能确定
【单选题】As we know, ______ speak ______.
A.
German, German
B.
German, Germen
C.
Germen, Germany
D.
Germans, German
【单选题】DRP是( )的英文的缩写。
A.
物料需求计划
B.
配送需求计划
C.
制造资源计划
D.
企业资源计划
【简答题】患儿,男,7岁,反复浮肿一年余,时有胁肋不适,脘腹胀闷,纳呆口苦,神疲乏力,大便不调,尿少尿赤,下肢浮肿。舌红苔黄腻,脉弦。尿常规:红细胞8~10个/HP,蛋白(+++)。血清HBV标志物持续阳性。 请回答:
【单选题】因特网是一个庞大的计算机网络,每一台入网的计算机一般都分配有一个IP地址。下面关于IP地址的叙述中,正确的是______。 ①72.259.5.0可以作为一个IP地址 ②每一台上网计算机的IP地址都是惟一的 ③一台机器的IP地址可以用它的主机名代替 ④IP地址由类型号、网络号、主机号3个部分组成
A.
①②④正确
B.
②③④正确
C.
只有②④正确
D.
都正确
【单选题】______, which began publishing in 1785, is the United Kingdoms oldest daily newspaper.
A.
The Times
B.
The Observer
C.
The Guardian
D.
The News of the World
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