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【单选题】
以下哪个不属于Java的关键字？A.
this
B.
yes
C.
for
D.
enum
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【简答题】数控机床坐标系按坐标值的读法不同可分为 和 。
【单选题】Which of the following is true of company mission statements?
A.
Mission statements should be defined in terms of satisfying customer needs.
B.
A firm's mission statement should be product-oriented, focusing on the products the company sells.
C.
Mission statements should not be specific, as this reduces the company's potential for growth.
D.
A company mission statement should be directed at the company's publics rather than at its employees.
【单选题】Just imagine performing such an opera as Turandot in the Forbidden City there _____ be a better setting!
A.
mustn’t
B.
shouldn’t
C.
couldn’t
D.
needn’t
【单选题】下列物质中,与0.3 mol H 2 O含有相同氢原子数的物质是( )
A.
0.3mol HNO 3
B.
3.612×10 23 个HNO 3 分子
C.
0.1mol H 3 PO 4
D.
0.2mol CH 4
【单选题】— I just can't imagine how people living here __________ the polluted environment. — Something must be done to change this situation. [ ]
A.
keep up with
B.
catch up with
C.
put up with
D.
come up with
【简答题】数控机床坐标系按坐标值的读法不同分为 和 。
【简答题】A．mobility B．motive C．moral D．mission
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