甲乙两车同时从两地出发相向而行，112小时在途中相遇．已知两地相距180千米，甲

低通滤波电路对信号的相移为正值，即输出信号的相位要落后于输入信号一个相角。

用所给单词的适当形式填空。

1. When we got there, all the beautiful birds had            (appear) in the forest.

2. You are very confident to make a____(speak) in front of the whole school.

3. Many children in Tibet can get a good____ (educate) now.

4. More and more schools will be            (build) in our hometown next year.

5. Many countries are paying more attention to the____(pollute) around us.

萎缩性胃体胃炎的胃液酸度是（）

A.升高

B.明显减少

C.明显升高

D.常减少

E.正常或减少

会计监督是指会计人员在进行会计核算的同时,对特定主体经济活动的（ ）进行审查。

A．正确性

B．效益性

C．合法性

D．合理性