我国丘陵上种植着苹果树,该地因地制宜、可持续发展农业的策略,正确的是 A.开垦荒

题型:选择题

问题:

我国丘陵上种植着苹果树,该地因地制宜、可持续发展农业的策略,正确的是

A.开垦荒坡地,扩大耕地面积

B.开垦基塘成产模式

C.缓坡修梯田,陡坡发展林业

D.发展出口创汇农业

考点:中国的农业
题型:选择题
阅读下面的短文,指出能填入相应空白处的最佳答案。
     Paul couldn't   1   last night. He woke up early and sat up, and he lay down again. He felt terrible. "I
must be ill," he thought, "but I must study for that   2  ." He got up and looked for his history notebook.
He finally found it on his chair. He    3   over his history notes, but he couldn't remember any of the
facts in his notes. "What shall I do?" He felt terrible. Just then Paul's telephone rang, so he put down his
notebook and picked up the telephone. "Good morning," Jack's voice said. "You must be wrong about the
test." "What do you mean?" Paul asked weakly. "We aren't going to   4   today," Jack said. "I wrote down
the date in my notebook. The test will be next Wednesday. It isn't today.   5   do you feel this morning?"
"Fine," said Paul. "Just fine!" Suddenly he really felt fine.
(     )1. A. asleep    
(     )2. A. test     
(     )3. A. go      
(     )4. A. took a rest 
(     )5. A. Why     
B. sleep     
B. lesson      
B. went       
B. have a rest 
B. Which     

C. slept           
C. book            
C. goes               
C. have a test      
C. What       

D. sleepy                
D. class                 
D. going                      
D. give a test        
D. How                
题型:选择题

惟一能区别一个控件的属性是 ______。

A.Caption

B.Text

C.Name

D.Index

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测定煤中的碳、氢含量时,试样的热解温度多保持在()以下。

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关注磨煤机分离器头部CO含量的必要性是什么?

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重金属离子属于荧光熄灭剂。

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