下列是有关某种淀粉酶的实验，处理方式及结果如下表及图所示。依此判断下列有关叙述正确的是

A．此种淀粉酶在作用35min后便会失去活性

B．甲物质对试管Ⅲ中淀粉酶活性的促进作用大于试管Ⅱ

C．在60℃的环境中此种淀粉酶已失去活性

D．此种淀粉酶在中性环境中的催化速率比在碱性环境中的快

用适当的介词或副词填空。

1. He cut the apple____halves.

2. They had a pleasant chat____coffee.

3. What time is it __your watch?

4. We can't go out____a result of the bad weather.

5.I don't agree with you____the price of the house.

6. The reason____his coming late is that he missed the bus.

7. His carelessness led____his failure.

8. Sorry,I didn't____understand you.

9. They were just in time____the bus.

10. We must concentrate our efforts____improving education.