皮皮学，免费搜题
登录
搜题
【单选题】
单向免疫扩散是将
A.
抗体混合琼脂板内，然后打孔加入抗原，再进行电泳
B.
抗原混入琼脂板内，然后打孔加入抗体
C.
抗原与抗体均不混入琼脂板内，而是在一定位置打孔后，分别加入
D.
抗体混入琼脂板内，然后打孔加入抗原
E.
抗原混入琼脂板内，然后打孔加入抗体，再进行电泳
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】len("hello world!")的输出结果为( )
A.
10
B.
11
C.
12
D.
9
查看完整题目与答案
【单选题】The divorced mother would have her own family, in which his position as an ______ stepson and his education would not be good.
A.
illicit
B.
illegal
C.
illegitimate
D.
illegible
查看完整题目与答案
【单选题】听力原文：M Hi, Sara. Is this desk available? I need to find some work space. W Let me think. That's Terry's spot but I think he's working from home today. M That's where Terry sits? Then I can't work ther...
A.
Format a document
B.
Find a place to work
C.
Get in touch with Terry
D.
Change his work schedule
查看完整题目与答案
【简答题】The doctor insisted that Paul's mother __________ examined thoroughly. A) would be B) must be C) be D) should have been
查看完整题目与答案
【单选题】Look! Ben with Sara.
A.
plays badminton
B.
is playing badminton
C.
play badminton
查看完整题目与答案
【简答题】My mother would like me________ (do) some shopping with her．
查看完整题目与答案
【判断题】窃蠹幼虫蛀食干燥动植物，如烟叶、药材、标本等。
A.
正确
B.
错误
查看完整题目与答案
【单选题】表达式len("譬如朝霞,去日苦多。") > len("Hello world!")的结果是:
A.
True
B.
False
C.
1
D.
0
查看完整题目与答案
【单选题】len("hello world!")的值是( )。
A.
14
B.
12
C.
11
D.
10
查看完整题目与答案
【单选题】下列选项中，属于车船税采用的税率形式的是（ ）
A.
比例税率
B.
定额幅度税率
C.
超额累进税率
D.
超率累进税率
查看完整题目与答案
相关题目：
【单选题】len("hello world!")的输出结果为( )
A.
10
B.
11
C.
12
D.
9
查看完整题目与答案
【单选题】The divorced mother would have her own family, in which his position as an ______ stepson and his education would not be good.
A.
illicit
B.
illegal
C.
illegitimate
D.
illegible
查看完整题目与答案
【单选题】听力原文：M Hi, Sara. Is this desk available? I need to find some work space. W Let me think. That's Terry's spot but I think he's working from home today. M That's where Terry sits? Then I can't work ther...
A.
Format a document
B.
Find a place to work
C.
Get in touch with Terry
D.
Change his work schedule
查看完整题目与答案
【简答题】The doctor insisted that Paul's mother __________ examined thoroughly. A) would be B) must be C) be D) should have been
查看完整题目与答案
【单选题】Look! Ben with Sara.
A.
plays badminton
B.
is playing badminton
C.
play badminton
查看完整题目与答案
【简答题】My mother would like me________ (do) some shopping with her．
查看完整题目与答案
【判断题】窃蠹幼虫蛀食干燥动植物，如烟叶、药材、标本等。
A.
正确
B.
错误
查看完整题目与答案
【单选题】表达式len("譬如朝霞,去日苦多。") > len("Hello world!")的结果是:
A.
True
B.
False
C.
1
D.
0
查看完整题目与答案
【单选题】len("hello world!")的值是( )。
A.
14
B.
12
C.
11
D.
10
查看完整题目与答案
【单选题】下列选项中，属于车船税采用的税率形式的是（ ）
A.
比例税率
B.
定额幅度税率
C.
超额累进税率
D.
超率累进税率
查看完整题目与答案