皮皮学,免费搜题
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搜题
【单选题】
PCM30/32系统一个复帧的周期时间为( )。
A.
125us
B.
250us
C.
2ms
D.
5ms
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【判断题】鱼露中的鲜味物质成分是氯化钠。
A.
正确
B.
错误
【单选题】听力原文:M: Excuse me, I'm looking for the emergency room. I thought that it was on the first floor. W: This is the basement. Take the elevator one flight up and turn left. Where did the conversation most...
A.
In a library.
B.
In a hotel.
C.
In a hospital.
D.
In an elevator.
【单选题】—I’m trying to find yesterday’s paper. Have you seen it? —I’m afraid I ______ it away. I thought you had finished reading it.
A.
had thrown
B.
throw
C.
would throw
D.
threw
【多选题】以下哪些是金蝶公司的系列产品?
A.
KIS
B.
K/3
C.
EAS
D.
BOS
【单选题】下述哪项结构不是由受精卵发育而来( )
A.
胚盘
B.
脐带
C.
羊膜
D.
蜕膜
E.
绒毛膜
【判断题】汽缸体的下方是油底壳,油底壳用于容纳机油,油底壳内部有挡板以防止机油的晃动。
A.
正确
B.
错误
【单选题】听力原文:M: Excuse me, I'm looking for the operating theatre. I thought that it was on the first floor. W:This is the basement. Take the elevator one flight up and turn left. Q: Where did the conversation...
A.
In a library.
B.
In an elevator.
C.
In a hospital.
D.
At a railway station.
【单选题】下述哪项结构不是由受精卵发育而来
A.
脐带
B.
胚盘
C.
羊膜
D.
蜕膜
E.
绒毛膜
【单选题】鱼露中的鲜味物质成分是()。
A.
硫化氢
B.
肌苷酸钠
C.
组胺
D.
三甲氨
【单选题】动物体温升高后,其昼夜温差变动在VC 以内,这种热型称为()
A.
稽留热
B.
弛张热
C.
间歇热
D.
回归热
E.
波状热
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