生产过程中生产或使用的有毒物质称为( )。A．煤尘 B．粉尘 C．灰尘 D．生产性 发布时间：2017-06-05 19:54 │ 来源：www.tikuol.com 题型：单项选择题 问题： 生产过程中生产或使用的有毒物质称为( )。A．煤尘B．粉尘C．灰尘D．生产性毒物
题型：单项选择题 阅读理解。 I'm Watching TV Now Jim found work in a shop two years ago. Mrs White, the shopkeeper, trusts (信任) the able young man and pays him more. He's happy and work harder. Once Jim knew a beautiful girl called Mable at a friend's party. They danced for several times and fell deeply in love. But Mable's parents didn't agree to marry (嫁) their daughter to a poor young man. So they took the girl to America and travelled there. And they didn't let her come back to London. She wrote a letter to Jim and told him about it. Of course the young man didn't have enough money to go to see her. He was so sad that he began to drink. It was Saturday one day, Jim didn't go to work. He came to a bar (酒馆) and sat down to drink. Justthen, Mike, one of his old friends, came in. He asked Mike to drink with him. Crying, he told him all and theyoung man felt sorry for him. After a while they were both drunk and left. Mike wanted to take his friend home. When they passed a zoo, they went in and walked to a cage in which there were two tigers. Having seen them a tiger roared (咆哮). Mike was afraid and said, "Let's go.It's dangerous to stand here." "I don't think so." said Jim. "I'm watching TV now." 1. Jim was ______. [ ]A. AmericanB. French C. Australian D. English 2. Mrs White trusts Jim because ______. [ ]A. he's youngB. he's able C. he likes drinking D. he's worked there for two years 3. Mabel's parents didn't agree to marry their daughter to Jim because ______. [ ]A. they decided to travel in America B. they made the girl study in America C. the young man wasn't rich enough D. the young man worked in a shop 4. Mabel's parents tried to ______, so they took her to America. [ ]A. make their daughter happy B. travell all over the worldC. find work outside EnglandD. stop their daughter from meeting Jim 5. Jim drank much to ______. [ ]A. forget his suffers (痛苦) B. forget MabelC. pass the time D. remember the days when he stayed with Mabel 查看答案
题型：单项选择题 假设某程序语言的文法如下：S→a｜b｜(T)T→TdS｜S其中：VT=a，b，d，(，)，VNS，T，S是开始符号。考查该文法，称句型(Sd(T)db)是S的一个 (33) ，其中， (34) 是句柄： (35) 是素短语； (36) 是该句型的直接短语； (37) 是短语。（36）处填（）。A．SB．S，(T)，bC．S，(T)，TdS，bD．[Sd(T)db] 查看答案