可引起触觉语颤增强的疾病是（） A.阻塞性肺不张 B.大量胸腔积液 C.支气管哮喘发

Taking this medicine，if__________，will of course do good to his health.

A．continued

B．to continue

C．continues

D．continuing

偶函数f（x）对任意实数x，y恒有f（x+y）=f（x）+f（y）-2xy-1，则f（x）的表达式为______．

请用下列单词或短语的适当形式填空.

Now you are in a dinosaur   1  park. Coming here, you will find a kind of old   2  , which has

died out millions of years ago, dinosaur. In our park, we are happy to show you     3   dinosaurs,

which lived in the Jurassic. The four-storied-building-high grass-eating dinosaurs are submissive

(温顺的) and kind. You can  4    towards them and touch them. But the   5  of them are dangerous.

The four-legged meat-eating dinosaurs are very cruel. Please don't    6  them and don't try to give

them food. The    7  here is very thick and full of all kinds of animals that lived in the Jurassic. Without

any special    8  and the leading of the guide, please don't step into it. OK, I'm sure that our park will

    9  anyone who comes here and you will   10 a lot from it.

悼念活动主持人的基本条件是什么？

所有升降口，大小孔洞必须设有不低于1050mm高的栏杆和不低于100mm高的护板。