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【单选题】
There seemed to be an _______ supply of champagne at the wedding.
A.
irrelevant
B.
irritable
C.
inexhaustible
D.
irresistible
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】设$A,B$为$R^+$中的非空有界集, 定义数集$P = \{ \left. x \right|x = a + b,a \in A,b \in B\} ,Q = \{ \left. x \right|x = a - b,a \in A,b \in B\} $, 则下列四个等式$ \qquad \sup P = \sup A + \sup B;\qquad \inf P = \inf A + \i...
A.
1个
B.
2个
C.
3个
D.
4个
【单选题】Traveling is _______ more comfortable now than it used to be.
A.
finitely
B.
infinitely
C.
eternally
D.
long-lastingly
【单选题】What does “insomnia” mean?
A.
Lack of vitality.
B.
Lack of sleep.
C.
Loss of interest in food.
【单选题】选择正确答案填入空内：下图所示电路在调整有关参数时晶体管始终工作在放大状态，试分析电路状态和性能指标的变化，用A、B、C填空。（1）当Rb减小时，静态电流IBQ将_____，
A.
增大
B.
减小
C.
基本不变
【单选题】、用泊松分布作近似计算
A.
$1-1.8e^{-0.8}$
B.
$1-0.8e^{-0.8}$
C.
$1-e^{-0.8}$
D.
$1-2.12e^{-0.8}$