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【单选题】
桥梁平面和高程测量控制网等级的选取是参照国家现行《新建铁路工程测量规范》和《公路桥涵施工技术规范》而定的，一般公路桥梁施工，要求桥墩中心线在桥轴线方向上不应大于______mm。A.
10
B.
15
C.
20
D.
30
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【单选题】The author feels less unrestrained when talking about animal emotions because ______.
A.
most animals have emotions as strong as human beings do
B.
most colleagues are on his side when talking about animals
C.
animals usually have mixed, and even conflicting emotions
D.
the view of animal emotions has become much more popular
【单选题】在血琼脂平板上,金黄色葡萄球菌的菌落是
A.
金黄色，无溶血环
B.
金黄色，有透明溶血环
C.
红色，无溶血环
D.
柠檬色，无溶血环
E.
半透明小菌落，有透明溶血环
【单选题】My sister _____ as a secretary in her company for three years and now she _____ to the manager of the sales department.
A.
served; has been promoted
B.
had served; has been promoted
C.
has served; has promoted
D.
was serving; has promoted
【单选题】金黄色葡萄球菌在血平板上的菌落特征是 -- ?
A.
金黄色菌落 + 绿色溶血环；
B.
金黄色菌落 + 透明溶血环；
C.
柠檬色菌落 + 绿色溶血环；
D.
白色菌落 + 绿色溶血环
【单选题】In commenting on O' Neill's record as Treasury Secretary, the passage seems to indicate that ______ .
A.
O'Neill has failed to use his power well
B.
O'Neill's policies were not well received
C.
O'Neill has been consistent in his policies
D.
O'Neill is skeptical about the package he's approved
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