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【单选题】
流体流入恒壁温的管道作层流传热时,其局部对流传热系数沿的变化规律为A.
逐渐减小
B.
先减小后保持不变
C.
逐渐增大
D.
先增加后保持不变
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举一反三
【单选题】下列关于自然的说法错误的是
A.
《说文解字》中所谓的自然是“事物自身的生长和涌现”的意思
B.
《说文解字》中所谓的自然是“自是”的意思，也就是指非人为的本然状态的意思
C.
自然 (natura) 一词来自罗马人对希腊语词 physis 的翻译
D.
自然在西语中，是自己生成、自己如此、天然生成的東西
【单选题】下列关于自然人的说法中，错误的是( )。
A.
自然人是基于人类自然规律而出生和存在的个人
B.
自然人是民法上的概念
C.
自然人并非一定是公民
D.
自然人和公民是一个概念
【单选题】What is the main reason for Ruth Handlers leaving the company?
A.
She was diagnosed with breast cancer.
B.
She wanted to establish another company to sell prosthesis.
C.
She was marginalized by her business partners for their diversion of the company.
D.
She was determined to help the women having undergone mastectomies.
【单选题】—My cousin often has nothing for breakfast, _____ she? — _____. Because she often gets up late and is afraid of being late for school.
A.
has; Yes
B.
doesn’t; No
C.
does; No
D.
hasn’t; Yes
【简答题】She often talks with a _______ appearance but in fact she is always telling lies. A.tidy B.sincere C.worship D.merry
【单选题】She ran and ran. At last she reached the finishing line, ____. [ ]
A.
out of breath
B.
losing her breath
C.
short of breath
D.
All of the above
【单选题】— What ____ she often do in her spare time? — She often plays the flute. [ ]
A.
did
B.
does
C.
do
【单选题】The little girl often has nothing for breakfast, ________she? -_______. Because she often gets up late and is afraid of being late for school.
A.
has; Yes
B.
doesn't; No
C.
does; No
D.
hasn't; Yes
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