皮皮学，免费搜题
登录
搜题
【多选题】
形成完全垄断的主要原因包括( )。A.
政府对某些行业实行直接控制
B.
政府赋予厂商在某一行业具有特许经营权
C.
厂商为保持自身地位而采取种种排他性措施,以及政府对某些寡头厂商的扶持政策
D.
具有高效生产规模的一家厂商即能提供足以满足全部市场需求的产量,其他厂商进入只会出现亏损
E.
厂商的技术创新和产品创新受到法律所赋予的专利权保护
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】You ________ take your umbrella. I am sure it won't rain.
A.
shouldn't
B.
mustn't
C.
don't have to
D.
can't
【单选题】心理测验工具的效度（ ）。
A.
是指所测量的与所要测量的心理特点之间符合的程度
B.
是在选用标准化测验或自行设计编制测量工具时，首先必须鉴定的
C.
是指同一被试者在不同时间内，用同一测验重复测量，所得结果的一致性程度
D.
是指一个心理测验的准确性
【单选题】She'll go with you if it ______ tomorrow. [ ]
A.
doesn't rain
B.
won't rain
C.
isn't rain
D.
will rain
【单选题】— I hear it will rain tomorrow. — It _____ true. You see, there are so many black clouds in the sky now. [ ]
A.
won't be
B.
will be
C.
may be
D.
may not be
【单选题】-How is the weather tomorrow? -I don't know if it_ tomorrow.Well,if it_ ,I won't go with you.
A.
will rain; will rain
B.
rains; rains
C.
rains; will rain
D.
will rain; rains
【单选题】You cannot say it __________ that it won't rain in the following days.
A.
make sure
B.
be sure of
C.
ensure
D.
for sure
【单选题】You ________ take your umbrella. I am sure it won't rain.
A.
shouldn't
B.
can't
C.
don't have to
D.
mustn't
【单选题】I'll go for a walk with you if it ______ tomorrow. [ ]
A.
won't rain
B.
doesn't rain
C.
will rain
D.
not rains
【单选题】—What will you do this weekend? —We won't go out if it ________ tomorrow. [ ]
A.
rains
B.
will rain
C.
rained
D.
won't rain
相关题目：