下列哪一项不属于情报的特点?() A.保密性 B.时效性 C.传递性 D.公开性

题型:单项选择题

问题:

下列哪一项不属于情报的特点?()

A.保密性

B.时效性

C.传递性

D.公开性

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题型:单项选择题

用所给动词的正确时态、语态填空 ( 共10小题;每小题1分,满分10分)

小题1:Be quiet, please ! The baby         (sleep).

小题2:—What does Frank often do at weekends?

—He often_________(go) to the cinema with his parents.

小题3:Andy _________(argue) with his brother when I went to see him yesterday.

小题4:She          (be) to her hometown several times.

小题5:_________(play) computer games too much is bad for your eyes.

小题6:Lucy tried         (not make) too many mistakes in the exam.

小题7:He ________ to us as soon as he gets there. (write)

小题8:By the time I got outside, the bus ____________ (leave).

小题9:I’m sure I _____ her four years ago. (see)

小题10:In summer,  Miss Xia would rather _________ (stay) at home than go out.

题型:单项选择题

我国首架具有自主知识产权的新支线飞机ARJ21—700于2007年底在上海飞机制造厂总装下线,于2009年进入试飞年,目前已经成功试飞7次。ARJ21—700有一个响亮的名字“翔凤”,其舒适性是世界一流的。ARJ21—700开始进入批量生产阶段,并已经获得了210架的订单。这使我们感受到(   ) 

①我国的综合国力在不断增强   

②我国已经成为飞机制造的最强国   

③我们的科技水平不断提高   

④教育的繁荣为现代化建设提供了动力

A.①②③④

B.①②③

C.①③④

D.①②④

题型:单项选择题

水泥管的连接适宜采用的连接方式为()。

A、螺纹连接;

B、法兰连接;

C、承插式连接;

D、焊接连接。

题型:单项选择题

英译中:Industrial engineering

题型:单项选择题

库存持有成本最小的订购量称为经济订购批量,简称订货量。( )

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