1.选择题- (共6题)
1.关于染色体和DNA分子关系的正确叙述是( )
①DNA分子数目加倍时,染色体数目也加倍
②染色体数目减半时,DNA分子数目也减半
③染色体数目加倍时,DNA分子数目也加倍
④染色体复制时,DNA分子也复制
①DNA分子数目加倍时,染色体数目也加倍
②染色体数目减半时,DNA分子数目也减半
③染色体数目加倍时,DNA分子数目也加倍
④染色体复制时,DNA分子也复制
2.单项选择- (共6题)
7.
—Wow! You’ve got so many clothes.
—But _____ of them are in fashion now.
—But _____ of them are in fashion now.
A.all | B.both | C.neither | D.none |
8.
You can’t borrow books from the school library ______ you get your student card.
A.before | B.if |
C.while | D.as |
9.
As a new diplomat, he often thinks of ______ he can react more appropriately on such occasions.
A.what | B.which | C.that | D.how |
10.
It is immediately clear ______ the financial crisis will soon be over.
A.since | B.what |
C.when | D.whether |
11.
Mozart's birthplace and the house he composed “The Magic Flute” are both museums now.
A.where | B.when |
C.there | D.which |
试卷分析
-
【1】题量占比
选择题:(6道)
单项选择:(6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:1
5星难题:0
6星难题:5
7星难题:0
8星难题:0
9星难题:0