制首乌所用的辅料是A．黄酒 B．白酒 C．甘草 D．黑豆 E．吴茱萸

Howling is a behavior commonly observed among a wolf nark. An animals, wolves work together to hunt and rely on howling was an important means of communication each other. There are different explants of a wolf’s howl and it appears that there may be more to discover.      One theory is that wolves howl to bend better together. It’s almost as if howling together helps the pack stay together. Perhaps something similar to people feeling a sense of involvement with each other when singing a song together . But this theory may be wrong, explains Fred H. Harington, a professor who studies wolf behavior.     Indeed, there have been tines when wolves have been seen one moment howling in a exhorts, and the next, quarreling anions each other. It appears that usually the lowest-tanking menthes of the pack may actually be “punished” for

Joining in the churs at times. So is howling a way to strcagthen a social boad or just a way to reconfirm status among its members? ——Why do welves howl for sure?

What is cleat, however, is that howling is often used among packmates to locate each other. Hunting grounds are distant and it happens that woloves may separate from one another at times. When this happens, howling appcars to be an ercellent means of gathering.

Howling, interestingly, is a contagious behaviour. When one wolf starts to howl, very likely others will follow. This is often seen to occat in the morning, as if wolves were doing some sotr of “roll rall”where wolves all howl togeter to howl, very likely others will follow. This is often seen to occar in the morning, as if wolves were doing w some sotr of “roll call”where wolves all howl together to repotr their pteence.

小题1:.What the por similarity between wolves’ how humaes ting in chorus?

A．The act of calling each other.

B．the sense of accomplishment.

C．The act of hunting for something.

D．The sense of belonging to a group.小题2:.Why does Harrington think the“secial boad”theory may be wrong?

A．Wolves separate from each other after howling.

B．Wolves tend to protect their hunting grounds.

C．Wolves sometimes have quarrels after howling together.

D．Wolves of low rank are encouraged to join in the chorus.小题3:Reseatchers are sure that wolves often howl to______.

A．show their ranks

B．find their companion

C．report the missing ones

D．express their lonelingess小题4:“Howling… is a contagious behaviour”(in the last paragraph)means_ ______.

A．howling is a signal for hunting

B．howling is a way of communication

C．howling aften occurs in the morning

D．howling spreads from one to another

脂肪水解后可被小肠直接吸收入血的形式主要有（）。

A.一酰甘油

B.短链脂肪酸

C.中链脂肪酸

D.长链脂肪酸

E.甘油

画定位夹紧装置工装图的步骤：画出中心线后画夹持部分，画弹簧夹头等，最后画（）

A.螺母

B.圆柱销

C.夹具体

D.支撑体

向客户递刀、剪、笔之类尖利的物品，要将尖头朝向（）。

A.自己

B.客户

C.向外

D.向上

その喫茶店を探すときは何か（）となるような建物がありますか。

A.目安

B.目印

C.目途

D.目付き