股利“手中鸟”理论认为企业应当采用高股利政策。()
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Scientists realize that maize
A. contributes little to global N2nO emissions.
B. absorbs nitrogen very efficiently in crops.
C. is largely responsible for the surplus N2nO.
D. may experience a bad harvest for bacteria.
Which of the following statement about Nevelson’ sculpture can be inferred from the passage？
A. They are meant for display.
B. They are often painted in several colors.
C. They are sometimes very large.
D. They are hand-carved.
The phrase “gum up the works” (Line 3, Para. 4) probably mean
A. to impair the benefits.
B. to bring about solutions.
C. to lead to trouble.
D. to improve the relations.
What’s the goal of Wikipedia according to the passage？
A. To create a people’s encyclopedia that is free to share and copy.
B. To produce a credible and authoritative reference tool.
C. To create an online environment where people freely exchange information.
D. To create a volunteer, but strictly controlled, free encyclopedia.
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