皮皮学，免费搜题
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【单选题】
________为当前因特网使用的协议A.
NCP
B.
TCP/IP
C.
UNIX
D.
ACM
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】听力原文：M: Excuse me, I'd like to send a registration letter to Houston, Texas. How much is the postage? W: Let me check. It's a dollar and 55 cents. Q: What is the probable relationship between the two ...
A.
Shop assistant and customer.
B.
Post clerk and customer.
C.
Store keeper and customer.
D.
Waitress and customer.
【简答题】组蛋白是一类与染色体 DNA 结合的重要蛋白质,在这类蛋白质中 Arg 和 Lys 的百分含量很高( 15 ~ 30% )。试问测定组蛋白的序列是否容易?为什么?
【单选题】听力原文：M: Excuse me. I'd like to place an advertisement for a used car in the Sunday edition of your paper. W: OK, but you have to run your advertisement all week. We don't quote rates for just Sunday. ...
A.
At a news stand.
B.
At a car dealer's.
C.
At a publishing house.
D.
At a newspaper office.
【单选题】Speaker A: Excuse me. I'd like to exchange this watch. I just bought it, but look at this. Speaker B: ______
A.
Yes, I know your watch is new, but I like my old one better.
B.
What seems to be the problem?
C.
Thank you for your kindness, but my watch still works.
D.
Sorry. Why didn't you examine it carefully before you bought it?
【单选题】听力原文：M: Excuse me. I'd like to place an advertisement for a used car in this Sunday's edition of your paper. W: OK, but you have to run your advertisement all week. We can't quote rates for just Sunda...
A.
At a newsstand.
B.
At a car dealer's.
C.
At a publishing house.
D.
At a shopping mall.
【简答题】2016年5月1日,某药品监督管理部门对辖区内的某一药品零售企业(连锁药店)进行检查,检查人员发现其货架上销售的药品有地西泮片10瓶,“港药”正红花油20盒。经查,该企业营业执照经营范围中有药品和医疗器械,药品经营许可证的经营范围为“中成药”、“中药饮片”、“化学制剂”、“抗生素制剂”,但未取得医疗器械经营许可证,所经营的地西泮片系从区域性药品批发企业业务员李某手中购入,一共购入10瓶,“港药”正...
【单选题】In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move________.
A.
up and draw in a fresh air charge
B.
down to burn off fuel
C.
down to compress the fuel air charge
D.
up and force out the exhaust gases
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