甲、已两物体的质量之比为5：2，密度之比为4：3，则体积之比为___爱下问搜题

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问题填空题

甲、已两物体的质量之比为5：2，密度之比为4：3，则体积之比为______．

答案

V甲

V乙

=

m甲

ρ甲

m乙

ρ乙

=

5

4

2

3

=

15

8

．

故答案为：15：8．

完形填空

Bob was a life insurance salesman. Try      he might, he was still unable to get a couple to sign up for a policy. “I certainly don’t want to frighten you into a      ” he announced, standing up to     . How      he be successful in his post?
People can be      by many different means. Fear is the common one.      many people find that other kinds of motivation are usually        effective in getting more out of those with whom we live and work.
A twelve-year-old girl took her younger brother, who       from a mental disability, Christmas shopping. As they went into a department store, the       accidentally hit a display, knocking shoes in every      . at that       an angry clerk grabbed the boy by the arm and    , “Pick them up.”
“No,” the boy screamed in defiance(反抗).
“Pick them up,” the clerk       .
“No,” the boy shouted back.
His older sister began picking up the        . Then the boy started to      . Before long, the boy, his sister and the clerk were        together to put the shoes         in order.
When they finished, the girl taught the clerk a(n)        lesson with these words: “You have to encourage my brother to do it in action.”
If you live or work with other people, you may benefit from the older sister’s advice. If you want people to respond to you, try encouraging them in action. People prefer       . When you fill people with what they want, you’re        to get what you want out of them.

D．in spite of

C．disappointed

B．contributed

单项选择题

机械性损伤治疗与护理下面哪项不正确( )。

A．积极抗休克
B．保护器官功能
C．加强营养支持
D．预防和治疗感染和破伤风
E．加强心理护理不应用镇静止痛药