问题
单项选择题
进行高空作业时应采取下列哪些安全措施（）。
Ⅰ．酒后不得从事高空作业；
Ⅱ．上下梯子时必须背向梯子，双手握住梯杆；
Ⅲ．禁止一手携物，一手扶梯上下；
Ⅳ．禁止两人在同一梯子上紧跟上下。
A．Ⅰ～Ⅳ
B．Ⅰ、Ⅲ、Ⅳ
C．Ⅰ～Ⅲ
D．Ⅰ、Ⅱ、Ⅳ
答案
参考答案：B
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进行高空作业时应采取下列哪些安全措施（）。
Ⅰ．酒后不得从事高空作业；
Ⅱ．上下梯子时必须背向梯子，双手握住梯杆；
Ⅲ．禁止一手携物，一手扶梯上下；
Ⅳ．禁止两人在同一梯子上紧跟上下。
A．Ⅰ～Ⅳ
B．Ⅰ、Ⅲ、Ⅳ
C．Ⅰ～Ⅲ
D．Ⅰ、Ⅱ、Ⅳ
参考答案：B
| 完形填空。 | |||
| Mr. Smith works in New York. Last month he had a fifteen-day holiday, but he didn't know where to spend it. He spoke to his friend Bill,"I 1 the hot weather, but I can't find a cool place in America. How should I spend my holiday?" "That's easy, " said Bill, "You'd 2 to Moscow. Snow and ice are covering the ground now. " Mr. Smith agreed 3 his friend. He bought an air ticket and soon 4 Moscow. He had a happy trip there, but one day he 5 . After lunch he went outside the city, he saw a dog 6 him while he 7 past (走过) a house. The dog was hungry and wished him to give it some food to eat. Bad luck! He had no piece of bread or cake in his pockets. He tried to drive it away. But it began to bark at (对……大叫) him. He wanted to look for a stick but he couldn't find anything 8 snow and ice. Suddenly he saw a stone on the ground. He hurried to 9 but failed. "How strange Russians are!" Mr. Smith said to himself, "They don't tie dogs, but firmly (紧紧地) 10 the stones. My God!" | |||
| ( )1. A. like ( )2. A. would go ( )3. A. to ( )4. A. arrived in ( )5. A. made a mistake ( )6. A. to follow ( )7. A. was walking ( )8. A. except ( )9. A. picked it up ( )10. A. tied | B. unlike B. would not go B. with B. arrive in B. get into trouble B. is following B. walked B. besides B. picked up it B. lied | C. not like C. better go C. at C. reach C. got into trouble C. followed C. was crossing C. beside C. pick it up C. tie | D. hate D. better to go D. about D. reached in D. find the trouble D. following D. crossed D. without D. pick up it D. lie |