阶段，既是小组组员之间形成亲密关系，也是开始出现小组的权力竞争和控制的阶段。
A. 小组准备期
B. 小组初期
C. 小组中期
D. 小组后期
E. 小组结束期
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Which of the following statements is correct？______.
A change in the discount rate usually precedes changes in reserve requirements.
B. A change in the discount rate usually confirms policy changes.
C. A change in the discount rate usually initiates a change in policy.
D. The discount rate usually moves in the opposite direction from other interest rates.
男性，2岁，生后即有紫绀，无晕厥及蹲踞。查体：紫绀杵状指，未闻心脏杂音。超声心动图示右心大，室间隔嵴下回声中断15mm，主动脉骑跨于室间隔上，主肺动脉细小，未见血流
此例的初步印象是
A. 室间隔缺损
B. 大动脉转位
C. 右室双出口
D. 肺动脉闭锁
E. 法洛四联症
The writer's attitude towards science is probably
A. indifferent.
B. critical.
C. approving.
D. neutral.
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