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【单选题】
直流电机的定子部分包括:
A.
机壳、机座和端盖、主磁极、换向极、电刷装置
B.
电枢铁芯、电枢绕组、换向器、转轴
C.
机壳、机座和端盖、主磁极、换向器、电刷装置
D.
机壳、机座和端盖、主磁极、换向器、转轴
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【判断题】资本积累率是指企业本年资产总额增长额同年初资产总额的比率。
A.
正确
B.
错误
【单选题】Who sells what to whom
A.
has been a major preoccupation of int'l economics.
B.
is  not a valid concern of int'l economics.
C.
is determined by political rather than economic factors.
D.
is less important than int'l economic theory.
【单选题】资本积累率是指企业( )的比率。
A.
本期 权益增长额与上期权益额
B.
本期权益额与上期权益额
C.
上期权益增长额与本期权益额
D.
上期权益增长额与本期权益增长额
【单选题】13) Who sells what to whom
A.
has been a major preoccupation of international economics.
B.
is not a valid concern of international economics.
C.
is not considered important for government foreign trade policy since such decisions are made in the private competitive market.
D.
is determined by political rather than economic factors.
E.
is less important than international economic theory.
【简答题】(14分)二氧化钛广泛应用于各类结构表面涂料、纸张涂层等,二氧化钛还可作为制备钛单质的原料。 Ⅰ.二氧化钛可由以下两种方法制备: 方法1:TiCl 4 水解生成TiO 2 ·xH 2 O,过滤、水洗除去其中的Cl - ,再烘干、焙烧除去水分得到粉体TiO 2 ,此方法制备得到的是纳米二氧化钛。 (1)①TiCl 4 水解生成TiO 2 ·xH 2 O的化学方程式为 。 ②检验TiO 2 ·xH 2...
【单选题】What is the finding of the new study?
A.
The gender divide is a big concern of the general public.
B.
Men and women understand economics quite differently.
C.
The gap between male and female economists needs to be closed.
D.
Male and female economists disagree widely on economic policy.
【简答题】Economics is not concerned solely with the optimum allocation of resources, but with wider questions of equity and the distribution of costs and benefits among individuals, regions, etc. It is thus co...
【判断题】资本积累率是指企业本年所有权益增长额同年初所有者权益的比率,它可以表示企业当年资本的积累能力,是评价企业发展潜力的重要指标。()
A.
正确
B.
错误
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
the fact that people of different nationalities or ethnical groups reside in different places
B.
why people of one type prefer to isolate themselves from those of another type
C.
peculiar characteristics of people from different countries in choosing living places
D.
what types of people like to move frequently and why they keep changing their living places
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
the fact that people of different nationalities or ethnical groups reside in different places
B.
why people of one type prefer to isolate themselves from those of another type
C.
peculiar characteristic of people from different countries in choosing living places
D.
what types of people, like to move frequently and why they keep changing their living places
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