葡萄糖中重金属检查方法为：取本品适量，加水23ml溶解后，加醋酸缓冲溶液（pH3.5)2ml，依规定方法检查

That's _______ — I thought I'd left my keys here but I can't find them.

A、wild

B、strangely

C、serious

D、weird

听力原文：Have you ever been to Brazil？

(A) In three weeks.

(B) No, I don't have any.

(C) Yes, I went there two years ago.

(34)

A．

B．

C．

— _______ may I _________the book？

—For three weeks.

[ A] How often; borrow

[ B ] How often; keep

[ C] How long; borrow

[ D] How long; keep

I know nothing about his journey he was likely to be away for three weeks.

A．if

B．unless

C．until

D．except that

—_______may I ______the book？ —For three weeks.

A．How often, borrow

B．How often, keep

C．How long, borrow

D．How long, keep

-- _________ may I _________ the book？-- For three weeks.

A．How often, borrow

B．How often, keep

C．How long, borrow

D．How long, keep

I came here three and a half months ago. I think I have made a good progress in English.

A．came

B．a half months

C．have made

D．a good progress

dinner Saturday night. Any suggestions？ Woman: It's up to you. I don't know the restaurants here that well. Question: What does the woman mean？

A．She can make a reservation at the restaurant.

B．The man should decide where to eat.

C．She already has plans for Saturday night.

D．The man should ask his brother for suggestions.

听力原文：M: Five airmail stamps and three regular stamps, please.

W: Here you are. That will be one dollar and eighteen cents.

Where did the conversation take place？

A．At the bank.

B．In the restaurant.

C．At the post office.

dinner Saturday night. Any suggestions？

M: It's up to you. I don't know the restaurants around here that well. So you know a better place to go than me.

Q: What does the man mean？

(19)

A．The woman should decide where to eat Saturday.

B．He already has plans for Saturday night.

C．The woman should ask her sister for a suggestion.

D．He will make a reservation at the restaurant.