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问题 选择题

小妍同学在研究物质密度时，对四种固体的密度与体积的关系做出的图象如图所示，根据图象可知下列说法中正确的是：

[ ]

A.ρ1＞ρ2＞ρ3＞ρ4

B. ρ1＜ρ2＜ρ3＜ρ4

C.体积相同时的固体1的质量最小

D.体积相同时的固体4的质量最大

答案

A

单项选择题 B型题

药物的体内过程是指（）

A.药物在体内的代谢和排泄过程

B.药物的吸收、分布、代谢和排泄

C.药物在体内受酶系统或肠道菌丛的作用发生结构转化的过程

D.当药物在体内分布达到动态平衡时，体内药量与血药浓度的比值

E.某些药物可使体内药酶活性、数量升高
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单项选择题

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.

The key to SNMP  （） is its simplicity. It has a small command set that does a good job of collecting information from  （） any network device. In a SNMP environment,  （） of the work is handled by the network management system. Devices that are being managed are not  （） with processing  （） that might affect their performance.

It has a small command set that does a good job of collecting information from （） any network device.

A．many

B．almost

C．a lot of

D．nearly
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