海蜇含水分很多，通常用盐、矾加工成蜇皮和蜇头。

给下面句子中加粗的字选择恰当的解释，把序号写在括号里。  

雄：①公的；②强有力的；③有气魄的；④强有力的人或国家。  

1． * * 红墙黄瓦，雕梁画栋，显得雄伟壮丽。（     ）  

2． 伴随一声声雄鸡的鸣叫，新的一天又来到了。（     ）  

3． 困难吓不倒英雄的中国人民。（     ）  

4． 事实胜于雄辩。（     ）

阅读短文，从方框中选择适当的动词，并用其适当形式填空。有的需要加助动词或不定式符号。（每词限用一次）

have   knock    happen   call   work   

Last weekend, Jim went to see a film. It was about a boy 1___________Bob. Bob lived with his parents in a small town. They were very poor. Bob’s father 2___________ in a market for a long time. Bob wanted 3___________a bike very much.

One day, an old man 4___________down by some boys, and they ran away. Bob went to help the old man. The old man gave him a magic book and told Bob to make a wish before opening it.

Can you guess what 5___________ in the end? Please watch the film and find out!

仲景论虚寒性腹满的主要脉症是（）

A.趺阳脉微弦

B.腹满时减，复如故

C.按之不痛

D.按之心下满痛

E.温温欲吐

在足球比赛中，甲、乙、丙、丁4支队分在同一小组，在小组赛中，这4支队中的每支队都要与另3支比赛一场，根据规定，每场比赛获胜的队可得3分，失败的队得0分，如果双方踢平，两队各得1分．已知：

①这4支队在场比赛的总得分为4个连续的奇数．

②乙队总得分排在第一．

③丁队恰好有两场同对方踢平其中一场是与丙队踢平．

问得排在第二、三、四的各是哪支队？

怎样判断通电导体产生的磁场方向？