A:质量为的木块受到四个力的作用
B:当逐渐增大到T时,轻绳刚好被拉断
C:当逐渐增大到1.5T时,轻绳还不会被拉断
D:轻绳刚要被拉断时,质量为m和2m的木块间的摩擦力为2T/3
根据短文,判断正误。
My name is Ted Pike. I am a worker in a big store. I don't work in the morning. I only work at night. Every morning I come home at about half past six. I have breakfast at seven. After breakfast I go to bed. I get up at about half past two. I have lunch at a quarter to three and supper at twenty to eight. Then I go to work at a quarter past eight. I start work at nine. I look after the store every night. I like my work very much.
指出下列各句分别应用了什么描写方法。
①他好像半身不遂地哆嗦着。等到他预备去收集干苔的时候,他才发现自己已经站不起来了。他试了又试,后来只好死了这条心,他用手和膝盖支着爬来爬去。____
②太奇怪了,他想道,这是幻象吧,也许是海市蜃楼吧——多半是幻象,是他的错乱的神经搞出来的把戏。____