四系杂交犬

对话填空：请认真阅读下面对话，并根据各题所给首字母的提示，写出一个英语单词的完整、

正确形式，使对话通顺。

K=Karen      S=Selina

K: You're late again.

S: Sorry, but there was a traffic (1) j______.

K: It's to ways the same excuse. Try to think of something better next time.

S: But I'm telling the truth! There was an (2) a______ in the cross-harbor tunnel. I don't think buy one.

    It is hurt but it (3) t______ the police over an hour to clear it. Anyway, how are you? You look a bit tired.

K: Well, actually, I've been (4) q______ with my grandmother again. I feel sad because it is go (5) w______,

    she blames me, even though it's not my fault.

S: What did your grandma say?

K: her favorite expression is "Young people are not as well behaved as they (6) u______ to be," She always

    complains that I don't show her enough (7) r______.

S: Well, try and understand her. She can't do all the things she did (8) w______ she was young. It must be

    very frustrating. Just think, one day we'll be old…

K: You're right. I should be more (9) u______. I think I'll buy her a present and apologize.

S: Right. Now you are feeling a bit better, it's your turn to help me. Could you give me a hand with my maths

    homework?

K: Maths again! Okay, girl can we find somewhere to (10) e______ first? I'm starving!

2002年3月25日至4月1日，200粒牡丹种子随，在太空中围绕地球飞行了108圈。通过这次飞行，可能使牡丹种子出现某些地球上无法获得的变异，而大大提升牡丹的品种、质量。这种育种方法是[ ]

A．诱导染色体变异    

B．诱导基因突变      

C．人工选择培育    

D．杂交

凝汽器铜管胀口轻微泄露，凝结水硬度增大，可在循环水进口侧或在胶球清洗泵加球室加（），使（）吸服在铜管胀口处，从而堵住胀口泄漏点。

孟子“四端说”

在《诸病源候论》中记载了各种疾病，其中包括妇科，（），（），内科，（）。