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【单选题】
在三投影面体系中，若物体上的直线垂直于正立面，则该直线为______，在______投影为反映实长的竖线。A.
铅垂线/侧立面
B.
水平线/正立面
C.
侧垂线/水平面
D.
正垂线/水平面
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反馈参考答案：
举一反三
【简答题】From
19 to 1658 England was called a Commonwealth. It was ruled first by Oliver
Cromwell as _______.A. Lord Protector B. Lieutenant General C. Commander of the New Model Army D. President
【单选题】From 1649 to 1658 England was called a Commonwealth. It was ruled by Oliver Cromwell as ______
A.
Lord Protector
B.
Lieutenant General
C.
Commander of the New Model Army
D.
President
【单选题】Demeter is believed to bring mankind harvest and _______.
A.
happiness
B.
love
C.
crops
D.
foods
【简答题】通读下面短文，掌握其大意，然后从短文后面的括号内选出可以填入短文空格处的词。 Peter is a famous writer now. But he was not a 1______ student when he was young. He was often late for 2______ and didn't like doing his homework. Sometimes, he...
【单选题】Demeter’s daughter Persephone was kidnapped by ______.
A.
Hades
B.
Zeus
C.
Poseidon
D.
Ares
【单选题】From 1649 to 1658 England was called a Commonwealth. It was ruled first by Oliver Cromwell as _______.
A.
Lord Protector
B.
Lieutenant General
C.
Commander of the New Model Army
D.
President
【简答题】SQL Server的约束包括 primary key 约束、 default 约束、 foreign key 约束、 和 。
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