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【单选题】
下列关于优先股的表述中,正确的是( )。
A.
优先股股东有公司管理权
B.
优先股的股利收益是事先约定的,属于公司必须偿付的法定债务
C.
优先股的清偿顺序先于普通股和债权人
D.
优先股既可以采用固定股息率,也可以采用浮动股息率
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参考答案:
举一反三
【单选题】The college student lost his life trying to save the drowning child, ________ he will always be remembered.
A.
in which
B.
about which
C.
by which
D.
for which
【单选题】已知某酶的Km 值为0.05mol·L-1 ,要使此酶所催化的反应速度达到最大反应速度的80%,底物的浓度应为多少
A.
0.2 mol·L-1
B.
0.4 mol·L-1
C.
0.1 mol·L-1
D.
0.05 mol·L-1
E.
无法确定
【单选题】Newspapers are trying to save themselves by doing the following EXCEPT ______.
A.
shifting the mix of the reports towards lifestyle. and entertainment
B.
planning more subjects relevant to daily lives and politics
C.
creating new programs on-and offiine
D.
investing in daily papers free of charge
【单选题】Newspapers are trying to save themselves by doing the following except______.
A.
shifting the mix of the reports towards lifestyle. and entertainment
B.
planning more subjects relevant to daily lives and politics
C.
creating new programs on-and offline
D.
investing in daily papers free of charge
【单选题】血浆蛋白质的等电点大多在 pH5-6 ,它们在血液中的存在形式是
A.
兼性离子
B.
阳离子
C.
阴离子
D.
疏水分子
【单选题】Green organizations are trying to save rain forests that have been _____ by farmers.
A.
created
B.
ruined
C.
threatened
D.
protected
【单选题】With the oil price rising, these days people are trying to work close to home ____ save money on gas. [     ]
A.
helps
B.
helped
C.
helping
D.
to help
【单选题】下列选项中,( )可使旋风除尘器的效率降低。
A.
粉尘温度降低
B.
粉尘密度增加
C.
进口流速不变,增加入口面积
D.
增加进口流速
【简答题】拜访的礼仪应注意哪些方面?
【简答题】拜访亲友应注意哪些礼仪?
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