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【单选题】
函数 z=xsiny 在点(1,π/4) 处的两个偏导数分别为A.
√2/2,√2/2
B.
√2/2, -√2/2
C.
-√2/2, -√2/2
D.
-√2/2, √2/2
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举一反三
【简答题】A．He ran a red light and collided with a truck. B．He sacrificed his life to save a baby girl. C．He was killed instantly in a burning car. D．He got married to Karen' s mother.
【简答题】验收药品应当按照药品批号查验___。供货单位为批发企业的，检验报告书应当加盖其质量管理专用章原印章。检验报告书的传递和保存可以采用___，但应当保证其合法性和有效性。
【单选题】He was a qualified doctor who rarely practiced but instead devoted his life to writing. He once said: 'Medicine is my lawful wife, and literature is my lover. ' Russian writer Anton Pav-lovich Chekhov...
A.
had a lawful lover
B.
was an illegal writer
C.
used to be a lawyer
D.
was a competent doctor
【单选题】验收药品应当按照批号查验同批号的检验报告书,供货单位为批发企业的,检验报告书的原印章应为
A.
单位的法人公章
B.
验收专用章
C.
质量管理专用章
D.
发货专用章
E.
仓库专用章
【单选题】He gave his life to ________ Chinese soldiers.
A.
help
B.
helping
C.
for helping
D.
helps
【单选题】It was in ______ that he decided to dedicate his life to the struggle against racial oppression.
A.
Harvard
B.
Barington
C.
Fisk
D.
Washington
【单选题】He was a qualified doctor who rarely practised but instead devoted his life to writing. He once said: 'Medicine is my lawful wife, and literature is my lover. ' Russian writer Anton Pavlovich Chekhov ...
A.
had a lawful lover
B.
was an illegal writer
C.
used to be a lawyer
D.
was a competent doctor
【单选题】He was______ that he should devote his life to his motherland.
A.
decided
B.
determined
C.
discussed
D.
figured
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