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【单选题】
大中型飞机地面加油常采用压力加油方式,其主要优点是A.
加油操作简单，控制加油量方便。
B.
加油压力大，便于排出油箱中的空气。
C.
加油过程可实现全自动，无需人员监控。
D.
加油速度快，安全性高，不易受到污染。
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Slavery was ______ in the U.S. in the 19th century.
A.
retailed
B.
canceled
C.
abolished
D.
stroked
【单选题】The following things about the railroads aroused public resentment EXCEPT ______ .
A.
their political power
B.
high fares
C.
the economic loss
D.
their indifference toward individuals
【单选题】下列叙述错误的是( )。
A.
化妆品不具有预防和治疗疾病的功能
B.
部分特殊用途化妆品具有一定的辅助治疗功效
C.
化妆品具有清洁、消除不良气味、护肤、美容和修饰的目的
D.
口红属于化妆品
【单选题】下列哪种化妆品不属于《化妆品卫生监督条例》中规定的化妆品经营单位和个人禁止销售类别
A.
无质量合格标记的化妆品
B.
临近使用期限的化妆品
C.
未取得批准文号的特殊用途化妆品
D.
无《化妆品生产企业卫生许可证》企业生产的化妆品
【单选题】(As) secretary of transportation, he worked to help the (bankrupt railroads) in the northeastern (United States) (solved) their financial problems.
A.
As
B.
bankrupt railroads
C.
United States
D.
solved
【单选题】As the value of the yen falls relative to the U.S. dollar in the foreign exchange market:
A.
Japanese goods become more expensive to the U.S. consumers.
B.
the supply of dollars will fall.
C.
the demand for Japanese goods will increase in the U.S. market
D.
U.S. goods become less expensive to Japanese consumers.
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