搜题请搜索小程序“爱下问搜题”
问题 选择题

下列山脉中，位于第二、三级阶梯的交界，且是东北-西南走向的是（　　）

A．喜马拉雅山脉

B．昆仑山脉

C．天山山脉

D．太行山脉

答案

大兴安岭、太行山、巫山、雪峰山是我国第二、三级阶梯的交界，又属于东北-西南走向．故选项D符合题意．

故选：D．

填空题



As always, I am pleased to be here at the National Press Club for my (1) Speech. This is the seventh time I have had the (2) to give this speech, and over the years I have talked about a wide range of issues: (3) , reading, setting high expectations, improving the teaching profession, and (4) the American high school -- to name just a few.
I have just returned from a five-day, (5) tour of schools in rural America. We started in Monroe, Louisiana, and finished (6) later in Paducah, Kentucky. What I noticed most about the trip was the weather. Every time I (7) my Success Express School Bus, the local people who came to greet me (8) that the record for (9) had just been broken in their community. In each place, the temperature was always between (10) degrees.
Now, I have very good people on my staff. But the next time we plan a (11) , I’m going to have a (12) on my staff. I took this bus trip through rural America to make an important point that the (13) of children in our nation’s small towns cannot be ignored. Twenty-five percent of all our school children live in (14) all over America.
When it comes to our children, let’s always remember that children everywhere have (15) and (16) . Yet, schools in small towns too often have to (17) because of limited resources and a (18) . On my trip I put a p focus on the issues that matter in rural America, with a particular emphasis on (19) schools, reducing class size, and overcoming the (20) .
查看答案
单项选择题

下列哪个朝代，开始以户籍征发赋税和徭役______

A．秦朝
B．北魏
C．西汉
D．隋朝
查看答案