体育课结束部分的脉搏宜为()
A.80~130次/分
B.90~120次/分
C.130~170次/分
D.130~180次/分
E.140~200次/分
参考答案:B
染色体结构异常的类型中,属于不稳定畸变的是()
A.缺失
B.相互易位
C.重复
D.环状染色体
E.倒位
The two men who had drunk too much stood ________ at each other on the road as if they were very angry with each other.
A.staring
B.laughing
C.glaring
D.smiling