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问题 选择题

读图海拔5000米的山地垂直自然带谱示意图”，四幅图中山地所处纬度最低的是（   ）

A．甲

B．乙

C．丙

D．丁

答案

答案：B

考查山地垂直自然带谱。海拔相同的山，纬度越低，垂直带谱越多，乙垂直带谱最多，说明纬度最低，故选B。

填空题

Story     hand      spend      take      unlucky

Dear classmates,

It’s March again. Don’t forget the important project this month----learning from Lei Feng. Would you like to give a _____81_____ to people who need help?

How about _____82_____ some time with the children in the orphanage? We will play games with them and tell them _____83_____. If possible, we will teach them how to make dumplings. Without the love of parents, they are _____84_____. Why not bring them some gifts to add a little cheer to their life?

Want to join us? Let’s meet at 7:00 at the school gate this Saturday. The school bus will _____85_____ us there. Don’t be late.

Students’ Union
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选择题

某同学欲从苯酚的甲醇溶液中分离苯酚和甲醇，有下列操作：①蒸馏②过滤③静置分液④加入足量的金属钠⑤通入过量的二氧化碳⑥加入足量的NaOH溶液⑦加入乙酸与浓硫酸混合液加热。合理的实验操作步骤及顺序是  

A．⑥①⑤③

B．④⑤③②

C．⑥①⑦②

D．⑤③②①
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