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【单选题】
上图中“-7.91” 表示:
A.
长度
B.
荷载
C.
轴力为压力,大小为7.91
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【简答题】电源电动势的方向由电源的 极经电源内部到 极的方向。
【单选题】Which of the following statements of Premier Zhou Enlai is NOT correct?
A.
He was a skilled and able diplomat.
B.
He helped formulate policies regarding the bitter disputes with the U.S., t;he Soviet Union, India and Vietnam.
C.
He helped orchestrate Richard Nixon's 1970 visit to China.
D.
He advocated peaceful coexistence with the West after the stalemated Korean War.
【判断题】开放体系状态下CT总量不变
A.
正确
B.
错误
【简答题】柴油在圆形直管内作强制滞流流动,给热系数可用下式计算: 。若流量和物性不变,将管内径减半后仍为滞流,则管内对流传热系数变为原来的__________倍。
【单选题】Premier Zhou Enlai is ______.
A.
male
B.
female
C.
shemale
【单选题】In _______ Premier Zhou Enlai passed away in _________.
A.
the seventies, the seventies
B.
his seventies, his seventies
C.
his seventies, the seventies
D.
the seventies, his seventies
【单选题】Recently a film was made _________ Premier Zhou Enlai.
A.
in charge of
B.
in memory of
C.
in search of
D.
in case of
【单选题】On the day of his funeral, the whole nation _____ the death of our beloved Premier Zhou Enlai.
A.
pained
B.
mourned
C.
saddened
D.
regretted
【单选题】引起营养性巨幼细胞贫血的主要病因是
A.
缺乏维生素B12和(或)叶酸
B.
缺乏维生素B6
C.
缺乏维生素B1
D.
缺乏草酸
E.
缺乏醋酸
【多选题】引起巨幼细胞性贫血的病因主要有
A.
喂养不当的婴幼儿
B.
服用影响叶酸代谢的药物,如甲氨蝶呤等
C.
长期酗酒者
D.
孕妇、乳母
E.
叶酸需求量剧增者,如甲亢、白血病等
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