根据上表所提供的信息完成对话中所缺的内容。

John: Hi, Alan! Do you like movies?

Alan: Yes, I do. And I don't like watching TV.

John: What kind of movies do you like?

Alan: I like 1______________, I think 2______________

John: I like them, too. They're funny and exciting. Do you like thrillers?

Alan: 3______________. They're  4______________

John: But I like them. They're exciting. I 5______________. They're boring.

Alan: Yes, I think so.

第一心音特点（）。

A.音调低，强度弱，性质低钝，持续时间短，通常只在儿童和青、少年可听到

B.音调较低，强度较响，性质较钝，历时较长，与心尖搏动同时出现，心尖部听诊最清晰

C.音调较高，强度较第一心音低，性质较第一心音清脆，在心尖搏动之后出现，心底部听诊最清楚

D.低调、沉浊、很弱，心尖部及其内侧较明显

E.音调高、历时短促而响亮、清脆，呈拍击样，在心尖内侧较清楚