1.选择题- (共5题)
2.图1是某蛋白质的肽链结构示意图,其中数字为氨基酸序号。肽链间通过2个肽链二硫键连接(二硫键由2 个—SH脱去2个H连接而成),在某链上也形成1个二硫键。图2是该蛋白质部分肽链放大图。请据图判断下列叙述中不正确的是( )

2.单项选择- (共5题)
6.
This was ____ anyone had previously sailed alone.
This was ____ anyone had previously sailed alone.
A.twice the distance | B.more than twice |
C.as twice as distant | D.twice what |
7.
I suddenly found myself ____ down the street when I found a crowd of people gathered in the street corner.
I suddenly found myself ____ down the street when I found a crowd of people gathered in the street corner.
A.run | B.running | C.runs | D.ran |
8.
He played a trick ____ Jessy and he had to apologize _____ treating her ____ a nice dinner.
He played a trick ____ Jessy and he had to apologize _____ treating her ____ a nice dinner.
A.on; for; to | B.in; by; to | C.on; by; to | D.on; by; with |
9.
____ Johnny says sounds right to Helen. That’s why she has made up her mind to live with him ____ happens.
____ Johnny says sounds right to Helen. That’s why she has made up her mind to live with him ____ happens.
A.Whatever; whatever | B.Whatever; however |
C.No matter what; whatever | D.No matter what; no matter what |
试卷分析
-
【1】题量占比
选择题:(5道)
单项选择:(5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:5
9星难题:0