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【单选题】
在火灾自动报警系统中( )是用于探测火灾的设备
A.
火灾探测器
B.
.手动报警按钮
C.
声光警报器
D.
消火栓按钮
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参考答案:
举一反三
【单选题】劳务报酬收入应纳个人所得税税额为( )元。
A.
4125
B.
3443
C.
4800
D.
7200
【简答题】回文数是指从左到右与从右到左读都一样的.如22,,11,3443,94249等.显然2位回文数有9个:11,22,33…,99.3位回文数有90个:101,111,121,…,191,202,…,999.则: (Ⅰ)4位回文数有______个; (Ⅱ)2n+1(n∈N + )位回文数有______个.
【单选题】From his ______ look, we can see he is ______ in the film very much.
A.
exciting; interesting
B.
excited; interesting
C.
excited; interested
D.
exciting; interested
【单选题】In the film “The Captain”, we can see _________ is the command center of the aircraft.
A.
terminal building
B.
airline operational control center
C.
power system
D.
air freight station
【判断题】本田系列车型音响的通用密码为3443。()
A.
正确
B.
错误
【单选题】In the film, we can see a train is carrying some women to Auschwitz concentration camp. The white-and-black color, plus the flashing and changing of shadow and light can create an atmosphere of all ex...
A.
horror
B.
desperation
C.
uncertainty
D.
distrust
【单选题】In the film "The Captain", we can see _________ is the command center of the aircraft.
A.
airline operational control center
B.
power system
C.
terminal building
D.
air freight station
【单选题】四冲程柴油机中,缸套与缸盖之间的紫铜垫圈加的太厚会造成压缩比____.
A.
增大
B.
减小
C.
不变
D.
视情况而变
【简答题】回文数是指从左到右与从右到左读都一样的.如22,,11,3443,94249等.显然2位回文数有9个:11,22,33…,99.3位回文数有90个:101,111,121,…,191,202,…,999.则: (1)4位回文数有(    )个; (2)2n+1(n∈N+)位回文数有(    )个。
【单选题】We are studying your offer and hope that it will remain till the end of credit payable by draft at sight.
A.
open
B.
okay
C.
close
D.
order
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