1.选择题- (共5题)
5.为测定氨基酸的密码子,科学家用人工合成的RNA进行蛋白质体外合成实验。若提供的RNA的碱基序列为:ACACACACAC……,则可合成苏氨酸和组氨酸交替排列的多聚体;若提供的RNA的碱基序列为:CAACAAACAACAA……,则可合成谷氨酰胺或天冬酰胺或苏氨酸的多聚体。据此推测苏氨酸的密码子是 ( )
2.单项选择- (共7题)
8.
I’ll lend you my bike_____ you take care of it.
A.as long as | B.as far as | C.even if | D.even though |
9.
Future agriculture should depend on high technology __________ traditional methods.
A.as good as | B.as far as | C.as well as | D.as long as |
10.
A study shows that people _____ get medical advice from the Web actually get worse.
A.whom | B.who | C.which | D.whose |
11.
If you don’t agree to our plan, __________.
A.so will they. | B.neither will they. |
C.neither they will. | D.so they won’t. |
试卷分析
-
【1】题量占比
选择题:(5道)
单项选择:(7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:7
7星难题:0
8星难题:0
9星难题:0