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【单选题】
已知sin α 2 = 3 5 ,cos α 2 =- 4 5 ,那么α的终(  )
A.
第一象限
B.
第三或第四象限
C.
第三象限
D.
第四象限
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【多选题】Texas is famous for its cattle industry. With its growth fo cattle industry __1__ a new kind of worker --the man who watched and took care of the cattle. These men who __2__ with them as they moved ac...
A.
came
B.
crowd
C.
especially
D.
films
E.
forcing
F.
lonely
G.
occasionally
H.
proud
I.
rode
J.
sang K. sole L. songs M. sorry N. things O. young
【简答题】Complete the following sentences with what you hear on the tape. 1) These men and women work for (1) , (2) and (3) . They belong to the (4) . 2) Her picture (5) the feeling of America’s (6) president ...
【简答题】To many people, love is 1____ in their life. In such hard times as the Second World War, love, even if not openly expressed, sustained a person through 2)_____ more than anything else. After the night...
【简答题】The importance of ethics is shown in the fact that most people choose to maximize their own benefits when economic and political decisions have to be made, and are only pred from acting against t...
【判断题】以评价对象的平均水平为参照点,确定评价对象在群体中的相对位置的评价方法称为常模参照评价。
A.
正确
B.
错误
【简答题】为了合理利用化学能,确保安全生产,化工设计需要充分考虑化学反应的反应热,并采取相应措施。化学反应的反应热通常用实验进行测定,也可进行理论推算。 (1)实验测得,5g甲醇在氧气中充分燃烧生成二氧化碳气体和液态水时释放出113.5kJ的热量,试写出甲醇燃烧的热化学方程式: ______________________ 。 (2)已知:Na 2 O 2 (s)+CO 2 (g)=Na 2 CO 3 (s...
【判断题】4) The life is shown in curved lines of blue and green on the picture.
A.
正确
B.
错误
【简答题】流动资本也就是流通资本。
【单选题】流动资本的存在形式是< )。
A.
生产资料
B.
资本金
C.
账户余额
D.
劳动对象和劳动力
【单选题】反应 推知产物依据的原则是:
A.
马氏规则
B.
霍夫曼规则
C.
休克尔规则
D.
查依采夫规则
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