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【判断题】
轮廓控制系统能够对两个或两个以上的坐标轴同时进行严格连续的控制。A.
正确
B.
错误
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反馈参考答案：
举一反三
【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.
【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】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】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
【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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