____ nearly all behavior is learned behavior is a basic assumption of social scientists. A、/ B、That C、It is acceptable D、When
根据拼音写出对应的汉字,你能给加点的字注上拼音。(4分)瘦骨lín xún ( ) 训jiè ( ) 酝niàng ( ) 抖sǒu(
He was______today, but was asked to stay for______week. A.to have returned; another B.returning; one more C.returned; another D.to return; other
1828年德国化学家维勒首次用无机物合成了有机物 A.甲烷 B.苯 C.尿素 D.乙醇
如图是初中化学的一些基本实验: (1)上述实验中不能达到实验目的是 (填字母). (2)A中可燃物应取过量的原因是一段时间后,C中的实验现象
It’s raining. You _________ out now. A. had better not go B. had not better go C. should go D. didn’t have better go
根据人体免疫的相关概念图,回答问题: (1)填写图中字母所代表的细胞名称,完成概念图: [a] ,[b] , [c]