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【单选题】
应用最广泛的一种网络设备,也是连接计算机与网络不可缺少的设备,是局域网最基本的组成部分之一,它就是( )A.
网卡
B.
中继器
C.
集线器
D.
网桥
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举一反三
【单选题】Acute hepatitis B occurs during _________ after acquiring the hepatitis B virus.
A.
the first one to four months
B.
the first one to six months
C.
the first one to five months
【单选题】Whatdoes“takearaincheck”mean?
A.
Going to the bank on a raining day.
B.
Bouncing the check.
C.
Not accepting the invitation now, but might be able to next time.
D.
Refusing to go to an appointment because it rains too much.
【单选题】若有如下定义和语句: double x=1.5; x++; 则以下叙述中正确的是
A.
x 是实型变量，不可以做自增 1 运算
B.
变量 x 经自增 1 运算后的值是 2.5
C.
变量 x 经自增 1 运算后的值是 1.6
D.
变量 x 经自增 1 运算后的值是 2.0
【单选题】Whatdoes the woman think of table wines?
A.
They come in a great variety.
B.
They do not make decent gifts.
C.
They do not vary much in price.
D.
They go well with Italian food.
【单选题】Whatdoes the woman imply?
A.
She will regret her decision.
B.
She does not think much of her boyfriend.
C.
She will wait for the right time to get married.
D.
She still wants to marry the guy.
【单选题】Early symptoms of acute hepatitis B may include________.
A.
thrombosis , fatigue and diarrhea
B.
palpitation, jaundice and dark urine
C.
nausea, vomiting and loss of appetite
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