【单选题】【消耗次数：1】
发展生态农业有利于改善什么？
①
农业生态环境质量
②
生态系统
③
生态效益
④
自然效益
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【多选题】
有关农田生态系统和生态农业的描述中，不正确的是（）。
①
A.农田生态系统是人工生态系统
②
B.农田生态系统的平衡不依赖人
③
C.生态农业就是农田生态系统
④
D.生态农业是一种自然生态系统
随机题目
【单选题】
5. I went to the doctor’s yesterday. I had to wait for half an hour before he _____ see me.
①
can
②
may
③
might
④
could
【单选题】
2. I was told yesterday that the company ______ me to Rome next week for a business conference.
①
should have sent
②
was going to send
③
should be sending
④
should send
【单选题】
17.Neither of them ____ the snake.
①
dares catches
②
dare to catch
③
dare catching
④
dare catch
【单选题】
12.You _____ return the book now. You can keep it till next week if you like.
①
cant
②
mustnt
③
neednt
④
may not
【单选题】
6. –Look, someone is coming. Guess who it _____ be?–I think it _____ be Tom.–I don’tthink it _____ be _____.
①
must; can; must; his
②
may; can; must; him
③
must; can; him
④
might; must; can; himself
【单选题】
1. If they ______ to do this work, he might do it some other way.
①
were
②
should
③
will
④
can
【单选题】
8. I______ go to bed until I ______ finished my work last night.
①
Don’t; had
②
didn’t have
③
didn’t; had
④
don’t; have