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【单选题】
圆管恒定均匀层流流动,已知断面平均流速为0.8 m/s,则管轴线上流速为 ( ).A.
0.6 m/s
B.
3.2 m/s
C.
0.4 m/s
D.
1.6 m/s
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举一反三
【简答题】设a、b、c为整形数，且a＝2，b＝3，c＝4则执行完以下语句后，a的值是【 】。 a*＝16+(b++)-(+ +c)；
【简答题】Don’t let your fear go viral Fear and misinformation are proving to be as contagious as the novel coronavirus. China is the country of origin for the novel coronavirus, and its people have experienced...
【简答题】Canada is a very large country. It is bigger than China. China is the third largest country in the world. Canada is the second largest . It has an area of nearly 10 million. Canada has a very long coa...
【单选题】Which of the following is NOT a branch of Macrolinguistics?
A.
Sociolinguistics
B.
Psycholinguistics
C.
Historical Linguistics
D.
Computational Linguistics
【单选题】Which is the primarily involved branch for coronary atherosclerosis?
A.
Right coronary artery
B.
Left anterior descending branch
C.
Left coronary artery
D.
Left circumflex branch
E.
Right anterior descending branch
【简答题】在RGB彩色空间的原点上,三个基色均没有(),即原点为()色,三基色都达到最高亮度则表现为()色。
【简答题】设a，b，c为整型数，且a=2，b=3，c=4，则执行完以下语句后，a的值是【 】。 a*=16+(b++)-(++c);
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