商朝前期,曾经几次迁都。后来迁都到殷以后,商都城稳定下来。历史上称为[ ] A.

题型:选择题

问题:

商朝前期,曾经几次迁都。后来迁都到殷以后,商都城稳定下来。历史上称为[ ]

A.伯益迁都

B.盘庚迁殷

C.成汤迁都

D.商纣迁都

考点:商汤灭夏和武王伐纣(盘庚迁殷、牧野之战,国人暴动)
题型:选择题
已知a、b互为相反数,c、d互为倒数,求
3a+3b-21
6cd+3
的值;
题型:选择题

电动机启动前应做好()准备。

A、工作票已全部终结,拆除全部安全措施;

B、做好电动机断路器的分合闸、继电保护和联动试验;

C、测量电动机绝缘应合格;

D、检查电动机所带的辅助设备具备启动条件。

题型:选择题

设有二维数组A[0…9][0…19],其每个元素占两个字节,数组按列优先顺序存储,第一个元素的存储地址为100,那么元素A[6,6]的存储地址为【 】。

题型:选择题

DNA分子中胸腺嘧啶的数量为M,占总碱基数的比例为q,若此DNA分子连续复制n次,需要的鸟嘌呤脱氧核苷酸为()

A.(2n-1)M

B.

C.

D.

题型:选择题

Most people have no idea of the hard work. One of the questions that is always asked of me is (1) I became an animal collector in the first (2) .The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any (3) was not the conventional "mamma" or "daddy", (4) the word "zoo", which I would (5) over and over again with a shrill (6) until someone, in order to (7) me up, would take me to the zoo. When I (8) a little older, we lived in Greece and I had a great (9) of pets, ranging from owls to seahorses, and I spent all my spare time (10) the countryside in search of fresh specimens to (11) to my collection of pets.(12) on I went for a year to the City Zoo, as a student (13) , to get experience of the large animals, such as lions, bears, bison and ostriches, (14) were not easy to keep at home. When I left, I (15) had enough money of my own to be able to (16) my first trip and I have been going (17) ever since then. Though a collector’s job is not an easy one and is full of (18) , it is certainly a job which will appeal (19) all those who love animals and(20) .

第(2)空应选择()

A.region

B.field

C.place

D.case

更多题库