女性，30岁，因乳癌做根治术，并经化疗。出院前进行健康指导。对预防复发最重要的是（）

下列应征收增值税的有( )。

A．将自己生产的产品用于本企业基本建设

B．将自己生产的产品用于职工福利

C．将外购的货物用于本企业专项工程

D．将外购的货物用于无偿赠送他人

下列哪项不属于孕产期保健的内容：（）

A、母婴保健 

B、计划免疫 

C、胎儿保健 

D、新生儿保健 

E、孕妇产妇保健

The shop owner will get all these goods ordered ______ to the customers today .

A．to deliver

B．delivering

C．deliver

D．delivered

The greatest chance for the existence of extraterrestrial life is on a planet beyond our solar system. The Milky Way galaxy alone contains 100 billion other suns, many of which could be accompanied by planets similar enough to Earth to make them suitable abodes of life.
The statement above assumes which of the following

A．Living creatures on another planet would probably have the same appearance as those on Earth.

B．Life cannot exist on other planets in our solar system.

C．If the appropriate physical conditions exist, life is an in evitable consequence.

D．More than one of the suns in the galaxy is accompanied by an Earth-like planet.

E．(E) It is likely that life on another planet would require conditions similar to those on Earth.

下面关于串行通信的叙述中，错误的是：

A．异步通信时，起始位和停止位用来完成每一帧信息的收发同步

B．二进制数据序列在串行传送过程中，无论是发送还是接收，都必须由时钟信号对传送数据进行定位

C．串行通信有单工、半双工和全双工三种方式

D．对传送数据进行校验时，如果发送方按偶校验产生校验位，那么接收方可按偶校验进行校验，也可按奇校验进行校验