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问题 单项选择题

设备到货后，物资供应中心首先必须组织入库验收，设备的随机资料、技术文件、产品说明书及（）等按有关规定分交，并履行签字手续。

A.计算书

B.合格证

C.协议

D.合同

答案

参考答案：B

多项选择题

先天性肌性斜颈的临床表现是

A．头斜向健侧，下颌和面部转向患侧

B．头斜向患侧，下颌和面部转向健侧

C．胸锁乳突肌处可触及质硬肿块

D．面部不对称

E．双眼不在同一水平线上
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单项选择题

The pilot of a small aircraft with a 40-gallon fuel tank wants to fly to Cleveland, which is 480 miles away. The pilot recognizes that the current engine, which can fly only 8 miles per gallon, will not get him there. By how many miles per gallon must the aircraft’s fuel efficiency be improved to make the flight to Cleveland possible ？（）

A. 2

B. 4

C. 12

D. 40

E. 160
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