1.选择题- (共4题)
1.用纯合的二倍体水稻品种高秆抗锈病(DDTT)和矮秆不抗锈病(ddtt)进行育种时,一种方法是杂交得到F1,F1再自交得到F2;另一种方法是用F1的花药进行离体培养,再用秋水仙素处理幼苗得到相应植株。下列叙述正确的是( )
2.单项选择- (共9题)
5.
—I am afraid no one will agree with you.
—I don’t think it ______ .
—I don’t think it ______ .
A.minds | B.troubles | C.matters | D.works |
6.
I don’t doubt that the price of the red apples is higher than___________ of the yellow__________ in this area.
A.those; that | B.that; those |
C.those; ones | D.that; ones |
7.
__________ five minutes_________ before the last train left, we arrived at the station.
A.There were; to go | B.With; to go |
C.I was; left | D.It had; left |
8.
All things____________, her paper is of great value.
A.to consider | B.having considering |
C.considering | D.considered |
9.
The new manager is intelligent and hard-working, and___________, he is very charming.
A.instead | B.therefore |
C.however | D.moreover |
10.
Mr. Green has made another wonderful discovery, ______ great
importance to science.
importance to science.
A.which I think is of | B.which I think it is of |
C.that I think is of | D.I think which is of |
11.
I knew nothing about the accident__________ I read in the newspaper.
A.except that | B.except what | C.besides what | D.besides that |
12.
Was it through Mary__________ was working at a high school_________ you got to know Bob?
A.who; who | B.who; that |
C.that; that | D.that; where |
试卷分析
-
【1】题量占比
选择题:(4道)
单项选择:(9道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:9
9星难题:0