做下面哪项免疫组织化学染色时，最好用冷冻切片（） A.T淋巴细胞表面抗原 B.HBs

小麦北种南引，常表现迟熟，甚至不能正常抽穗，故引种不易成功。

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

— What do you think makes a person read a newspaper article? 

— 1_____

— Why do you say that?

— The headline is bigger than the rest of the text, so it draws people's attention.

— 2_____  However, I often wonder if the headline presents enough information to the readers.

— The headline usually tells you the most important information from the article. Isn't that enough? 

— 3_____

— I suppose so. Exactly.

— 4_____

— I just write for a local newspaper. It's quite a small office but I really enjoy my job.

— Would you like to write for a national newspaper?

— I hope so. 5_____

— Oh, I already write for a national magazine. I love my job.

— Me, too

A. If the headline was longer, then nobody would read the article.

B. What do you usually write for a newspaper?

C. So which newspaper do you write for?

D. I don't agree with you.

E. How about you?

F. I think the headline is quite important.

G. I agree with you.

有关多糖的叙述不正确的是（）。

A.它们是生物体的主要能源

B.它们以线性或分支形式存在

C.它们是组成细胞壁的主要物质

D.它们是信息分子

甲乙两国协议将其边界领土争端提交联合国国际法院。国际法院作出判决后，甲国拒不履行判决确定的义务。根据《国际法院规约》，关于乙国，下列哪一说法是正确的？（）

A．可申请国际法院指令甲国国内法院强制执行

B．可申请由国际法院强制执行

C．可向联合国安理会提出申诉，请求由安理会作出建议或决定采取措施执行判决

D．可向联大法律委员会提出申诉，由法律委员会决定采取行动执行判决

流动偏好：凯恩斯提出的一种人们以货币的形式保持一部分资产的愿望和偏爱，它是一种心理动机，是人们为了应付日常开支、意外开支和在适当的时机投机牟利活动需要而愿意手头持有现金的倾向。 下列现象不属于流动偏好的一项是( )

A．银行一再降息，全国的储蓄率仍然很高

B．为了孩子将来上大学，金明从结婚后就开始为孩子存款

C．最近一段时间来，股市形势一直不好，许多股民纷纷退出股市

D．李明平时勤俭节约不乱花钱是怕突如其来的下岗后的拮据