冰冻红细胞的白细胞去除率为（）。 A.99% B.98% C.97% D.96% E_爱下问搜题

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问题单项选择题 A1/A2型题

冰冻红细胞的白细胞去除率为（）。

A.99%

B.98%

C.97%

D.96%

E.95%

答案

参考答案：B

多项选择题

在现券市场发送限价报价时，关于是否可拆分的描述正确的是（）

A、如果选择可拆分呢，则可以填写变动单位

B、如果选择可拆分呢，则变动单位变灰，无法填写

C、如果选择不可拆分呢，则变动单位变灰，无法填写

填空题

Questions

·Read the following passage and choose the best word for each space.
Do you want to send an e-mail message to the White House
Good luck.
In the past, (26) President Bush — or at least those assigned to read his mail — what was (27) your mind it was necessary only to sit down at a personal computer connected to the lnternet and (28) a note to president@ whitehouse.gov.
But this week, Tom Matzzie, an online organizer with the A.F.L.-C.I.O., discovered that (29) with the White House had become a bit more (30) . When Mr. Matzzie sent an e-mail protesting (31) a Bush administration policy, the message was bounced back With an automated reply, saying he had to send it again in a new way.
Under a system (32) on the White House Website (33) the first time last week, those who want to send a message to President Bush must now (34) as many as nine Web pages and (35) a detailed form that starts by asking whether the message sender supports White House policy (36) differs with it.
The white House says the new e-mail system is an effort to be more responsive (37) the public and offer the administration "real time" access (38) citizen comments.
Completing a message to the president also requires (39) a subject from the provided list, then entering a full name, organization, address and e-mail address. (40) the message is sent, the writer must wait for an automated response (41) his message, (42) whether the addressee intended to send the message. The message is delivered to the White House only after the person using that e-mail address (43) it.
"Over (44) , it’s a very cumbersome process," said Jakob Nielsen, an authority on Web design. "It’s probably designed deliberately to (45) on their e-mail.\

A. forB. againstC. onD. over