在利用斜坡装卸设备时，钢丝绳的绑扎点应尽量（）一些，以免将设备拉倒，特别是重心较高的

根据地下水对建筑材料的腐蚀评价标准，学术上把对钢筋混凝土的腐蚀主要分为三类。下列各项中，不属于规定的腐蚀类型的是( )。

A．结晶类腐蚀
B．溶解类腐蚀
C．结晶分解类腐蚀
D．分解类腐蚀

如图所示种群在理想环境中呈“J”型增长，在有环境阻力条件下呈“S”型增长。下列有关种群数量增长曲线及其应用的叙述中正确的是

A．当种群数量达到e点后，增长率为0

B．种群增长过程中出现环境阻力是在d点之后

C．防治蝗灾应在害虫数量达到c点时进行

D．渔业捕捞后需控制剩余量在b点

单句改错

1.  This is one of the books which was written by Luxun.

2. He said he was a French which were not true.

3. I,who is a Chinese,  will do my best for my country.

4. This is the most beautiful place that I have visited it.

5. The tomatoes were on the table would be given to you.

6. The school where I worked there is a famous one.

7. This is the time at when we go home every day.

8. The rain had lasted a week, that stopped us from setting out on time.

商取代夏，周取代商，而不是自己在自己的势力范围里面发展有一个原因就是，这些建立了王朝的地区的文明和体制建立比较完善，更适合发展。

以下为增加水相粘度的辅助乳化剂的是

A．果胶

B．硬脂酸

C．硬脂醇

D．蜂蜡

E．鲸蜡醇