A．lthough they plant trees in this area every year, the tops of some hills are still  _______.

   A) blank         B) hollow            C) vacant              D) bare

 

[单选题]E．A． rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can take in heat

[单选题]_____________ we plant, _________________our city will be.A． The more trees, the beautiful B. The less trees, the more beautifulC． The more trees, the more beautiful D. The less trees, the beautiful

[单选题]Trees____fightairpollution．Theyarenaturalairconditioners．A．shouldB．mustC．needD．can

[单选题]There are many trees on ______side of the river．A．bothB．eitherC．allD．a

[主观题]()和RA(Routing Area)的概念类似，用于 EPC/E-UTRAN网络内，由多个小区组成，可包含多个eNB的小区，用于用户的()。

[名词解释] 诱发植物（evocator plant）

[问答题]Trees need water to grow.

[问答题]Trees need water to grow.

[单选题]On ________ side of the street there are some trees.A.bothB.eitherC.everyD.

[问答题]Trees need water to grow.