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问题 单项选择题

木材的方材为断面宽与高之比小于（）的制材。

A.3.0

B.3.5

C.2.0

D.2.5

答案

参考答案：A

解析：

按建筑型材分类分为：原木，板材，枋材。原木：伐倒后经修枝后按一定长度锯断的木材。板材：断面宽度为厚度的三倍及三倍以上的型材。枋材：断面宽度不及厚度三倍的型材。

完形填空
完形填空。

     Last month, Tom spent his holidays in a small town. He stayed at a small hotel    1     the train
station for many days.
     One night, before he     2   , he went to the owner of the hotel and asked, " Will you please wake
me up at    3     tomorrow morning? I have to catch the five o'clock train." "Oh, sorry," the owner said,
"I     4    get up so early." Then Tom asked the owner, "Have you got     5    alarm clock?     6    it can
help me." "Yes, here you are, Sir." The owner said. Tom thanked him and     7    his room. However,
when he     8    the clock carefully, he found there was     9    with it. Tom left his room and
asked the owner again.
     "Excuse me, are you sure the clock will ring on time?" Tom asked. 
     "   10    ,  Sir!" said the owner, "When you shake it at 4:45 in the morning, it will ring."

(      )1. A. near             
(      )2. A. lay in bed     
(      )3. A. four-thirty     
(      )4. A. sometimes         
(      )5. A. a              
(      )6. A. but            
(      )7. A. went back       
(      )8. A. looked         
(      )9. A. wrong something 
(      )10. A. You'e welcome.		B. across        
B. went to bed   
B. five           
B. often         
B. an            
B. maybe         
B. returned back 
B. saw           
B. something wrong
B. No question.   		C. on          
C. was in bed  
C. five-fifteen
C. usually     
C. the         
C. If          
C. back to     
C watched      
C. nothing wrong
C. Of course.    		D. in front    
D. got to sleep
D. five-thirty 
D. never       
D. some                               
D. Or          
D. returned to 
D. looked at   
D. wrong nothing
D. No.         
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单项选择题

以下关于支原体鉴定方面描述错误的是（）

A.肺炎支原体能发酵葡萄糖发酸，不能利用精氨酸、尿素

B.肺炎支原体氯化三苯基甲氮唑还原试验阴性

C.解脲脲原体只分解尿素，不分解葡萄糖、精氨酸

D.人型支原体分解精氨酸，不分解尿素和葡萄糖

E.穿通支原体发酵葡萄糖，水解精氨酸，不分解尿素
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