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【单选题】
企业本月生产甲产品 8000 件,实际耗用 A 材料 32 000 公斤,其实际价格为每公斤 40 元。该产品 A 材料的用量标准为 3 公斤,标准价格为 45 元,其直接材料用量差异为( )元。 A . 360 000 B . 320 000 C . 200 000 D . -160 000A.
A
B.
B
C.
C
D.
D
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【单选题】Psychological research indicates that college hockey and football players are more quickly moved to hostility and aggression than are college athletes in noncontact sports such as swimming. But the re...
A.
The football and hockey players became more hostile and aggressive during the season and remained so during the off-season, whereas there was no increase in aggressiveness among the swimmers.
B.
The football and hockey players, but not the swimmers were aware at the start of the experiment that they were being tested for aggressiveness.
C.
The same psychological research indicated that the football and hockey players had a great respect for cooperation and team play, whereas the swimmers were most concerned with excelling as individual competitors.
D.
The research studies were designed to include no college athletes who participated in both contact and noncontact sports.
E.
Throughout the United States, more incidents of fan violence occur at baseball games than occur at hockey or football games.
【单选题】远途出行时,以下行为不正确的是( )
A.
尽量不在旅途中摘下口罩吃喝
B.
摘口罩时，不要触碰口罩外表面
C.
用过的口罩，直接放入包里和兜里
D.
勤洗手，不乱摸，保持手部的清洁
【单选题】Scientific research indicates that two-thirds of the earth's surface ______ with water.
A.
covered
B.
are covered
C.
covers
D.
is covered
【单选题】The passage indicates that leadership research______.
A.
has turned out to be fruitless
B.
predicts how a leader comes to be
C.
defines the likelihood to be a leader
D.
probes the mysteries of leadership
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