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【单选题】
单位时间内机体呼出的CO 2 量与消耗的O 2 量的比值称为( )
A.
基础代谢率
B.
热价
C.
氧热价
D.
呼吸商
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参考答案:
举一反三
【单选题】关于域名下列说法不正确的是( )。
A.
在DNS系统中,域名服务器是一个服务器软件,运行于指定的计算机中
B.
域名有一些限制,在书写时需要区分大小写
C.
域名只是一个逻辑概念,并不反映出计算机所在的物理地点
D.
IP地址与域名不是一一对应的,一个IP地址可以有多个域名
【判断题】关于儿茶素的几何构型和旋光异构,“L”表示左旋。
A.
正确
B.
错误
【单选题】What should the room attendant do when the luggage arrived at the floor before the team gusts live in the rooms:
A.
Open the doors
B.
Take the luggage to a safety place
C.
Check the luggage
D.
Check the room numbers and deliver the luggage one by one
【单选题】The room attendant should knock ___ times before enter the room?
A.
2
B.
4
C.
3
D.
1
【判断题】电力系统稳态分析中所用阻抗指的是一相等效阻抗。
A.
正确
B.
错误
【多选题】When it is inconvenient for the room attendant to make up the room, the room attendant may say the __________.
A.
When is a good time to come back?
B.
I have to clean the room now.
C.
I will be back in half an hour later.
D.
What time would be convenient?
【单选题】电力系统稳态系统所指电抗是( )。
A.
一相电抗
B.
两相电抗
C.
三相电抗
D.
多相电抗
【单选题】Before entering the room, what should the room attendant say?
A.
Housekeeping , May I come in?
B.
I must come in.
C.
Shall I leave now?
D.
I am always at your servie.
【单选题】电力系统稳态分析中所用阻抗指的是()
A.
一相等效阻抗
B.
两相阻抗
C.
三相阻抗
D.
四相阻抗
【单选题】—Will you go to the party tomorrow, Xiao Hai? —No, ____ I was invited to.A.as long asB.so far asC
A.
15.—Will you go to the party tomorrow, Xiao Hai? —No, ____ I was invited to. A.as long as
B.
so far as
C.
as if
D.
even if
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