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举一反三
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】完全竞争市场的厂商供给曲线是指( )
A.
AVC>MC 中的那部分AVC曲线
B.
AC>MC中的那部分AC曲线
C.
MC≥AVC中的那部分MC曲线
D.
MC≥AC中的那部分MC曲线
【单选题】某土方工程计划累计完成工程量的S曲线如下图所示，1～4天每天实际完成工程量分别为90m3、20m3、80m3、100m3，则第3天下班时该工程累计拖欠的工程量为()m3。
A.
10
B.
20
C.
30
D.
60