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问题 解答题

仓库里的钢筋的规格都是每根长16米。 用这样的钢筋锯成2米和5米的小段。  

（1）怎样锯可正好用完一整根钢筋？ 

（2）每锯一截需2分钟，锯完15整根钢筋要多少分钟？

答案

（1）16=2×3+5×2，每根锯成3段2米的小段和2段5米的小段

（2）每根锯5段，需锯4次，2×4×15=120（分钟）

单项选择题

WAP uses (1) which includes the Handheld Device Markup Language (HDML) developed by Phone.com. WML can also trace its roots to eXtensible Markup Language (XML). A markup language is a way of adding information to your (2) that tells the device receiving the content what to do with it. The best known markup language is Hypertext Markup Language. (3) HTML, WML is considered a meta language. Basically, this means that in addition to providing predefined (4) , WML lets you design your own markup language (5) . WAP also allows the use of standard Internet protocols such as UDP, IP and XML.

3（）

A．Usable

B．Able

C．Unlike

D．Like
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单项选择题

肾血流量测定（）

A．血清K+↑ 

B．血清Cl-↑ 

C．血清Na+↑ 

D．血清C1-↓ 

E．血清K+↓
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