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问题 单项选择题

13，9，31，71，173，( )

A．235
B．315
C．367
D．417

答案

参考答案：D

解析： 本题属于组合数列，通过观察可知：31=13+9×2，71=9+31×2，173=31+71×2，由此可得出第一项加第二项的二倍等于第三项，所以D项为正确答案。故选D。

多项选择题

痰浊阻滞型缺乳的临床表现有

A． * * 硕大或下垂不胀满

B．形体肥胖

C．舌淡胖，苔腻，脉沉细

D．乳汁少而稠

E．乳汁少而不稠
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单项选择题

Some of the keys have a special use. There are referred to as command keys. The 3 most common are the Control or (66) , Alternate or (67) and the Shift keys though there can be more (the Windows key for example or the Command key). Each key on a standard keyboard has one or two characters. Press the key to get the lower character and hold Shift to get the upper. Disk Drives - All (68) need a drive to get information off - or (69) - and put information on the disk - or (70) . Each drive is designed for a specific type of disk whether it is a CD, DVD, hard disk or floppy. Often the term ’disk’and ’drive’are used to describe the same thing but it helps to understand that the disk is the storage device which contains computer files-or software - and the drive is the mechanism that runs the disk.

A．read

B．write

C．draw

D．fill
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