单选题若复数z满足，则z的虚部为______。A．B．C．D．

单选题与初中生相比,高中生的作文写得新颖生动,创造多于模仿,这说明高中生思维的( )水平较高。

单选题下列人类活动有利于实现区域可持续发展的是( )。

单选题解析下面试题。 甲午战争后，各资本主义国家向中国进行资本输出，加快了中国民族资本主义的发展，其原因是( )。 A．列强的资本输出迫使中国政府开始鼓励民办企业 B．列强资本的输出为中国民族资本主义的发展提供了资金 C．列强在资本输出的同时将他们国家的先进技术和设备带到了中国 D．列强资本输出导致中国的商品市场和劳动力市场的进一步扩大

单选题Which of the following is NOT a design feature of human language? A. Arbitrariness B. Displacement C. Duality D. Diachronicity

单选题The survey about childhood in the Third World shows that the struggle for survival is long and hard. But in the rich world, children can suffer from a different kind of poverty—of the spirit. 1 , one Western country alone now sees 14,000 attempted suicides (自杀) every year by children under 15, and one child in five needs psychiatric (心理上的) advice. There are many good things about 2 in the Third World. Take the close and constant relation between children and their parents, relatives and neighbors for example. In the West, the very nature of work puts distance between 3 and children. But in most Third World villages mother and father do not go miles away each day to work in offices. 4 , the child sees mother and father, relatives and neighbors working nearby and often shares in that work. A child 5 in this way learns his or her role through joining in the community"s work: helping to dig or build, look after animals or babies—rather than through playing with water and sand in kindergarten, keeping pets 6 playing with dolls. These children may grow up with a less oppressive sense of space and time than the Western children. Their sense of days and time has a lot to do with the change of seasons and positions of the sun or the moon in the sky. Children in the rich world, on the other hand, are provided with a watch as one of the 7 signs of growing up, so that they can 8 along with their parents about being late for school times, meal times, bed times, the times of TV shows... The Third World children do not usually 9 to stay indoors, still less in high-rise apartments (公寓). Instead of dangerous roads, "keep off the grass" signs and "don"t speak to strangers", there is often a sense of freedom to study and play. Parents can see their children outside rather than observe them 10 from ten floors up. Of course, twelve million children under five still die every year through hunger and disease. But childhood in the Third World is not all bad.

单选题餐厅服务机器人能“听懂”客人的话，能够学习送食物，其使用的主要技术是( )。

单选题“落霞与孤鹜齐飞，秋水共长天一色”这一名句出自诗人（）。

单选题______是学生获取系统知识的重要工具，也是教师进行教学的主要依据。

单选题小红同学在学完素描后，很快就掌握了油画的绘画技巧。这一现象称为( )。

单选题汇编语言中，哪个寄存器可以用来指示存储器地址?( )

单选题读图，回答下列问题。

单选题课程标准的条目“设计一份营养合理的食谱”在知识性目标要求中属于( )A．了解水平B．理解水平C．应用水平D．识记水平

单选题现需购买三种调料加工成一种新调料，三种调料的价格分别为每千克20元、30元和60元，如果购买这三种调料所花钱一样多，则每千克新调料的成本是：

单选题Someone says, "Time is money." But I think time is 1 important than money. Why? Be-cause when money is spent, we can get it back. However, when time is 2 it"ll never 3 . That"s 4 we mustn"t waste time. It goes without saying that the 5 is usually limited. Even a second is very important. We should make full use of our time to do 6 useful. But it is a pity that there are a lot of people who do not know the importance of time. They spent their limited time smoking, drinking and 7 . They do not know that wasting time means wasting part of their own 8 . In a word, we should save time. We shouldn"t 9 today"s work for tomorrow. Remember we have no time to 10 .

单选题下列关于网络信息安全的叙述，不正确的是______

单选题Wind power is an ancient source of energy ______ we may return in the near future.

单选题中央红军在长征中跳出国民党军队战略包围行动的是（）

单选题十二届全国人大四次会议表决通过，自2016年9月1日起施行的法律是______。