下列乳制品中不属于发酵乳制品的是（） A.酸牛乳 B.干酪 C.甜炼乳

Skin-diving(潜泳) is a new sport today. This sport take you into a wonderful new world. It is like a visit to the moon! When you are under water, it is easy for you to climb big rocks, because you are on longer heavy.

Here, under water, everything is blue and green. During the day, there is plenty of light. When fish swims nearby, you can catch them with your hands.

When you have tanks(罐) of air on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water.

To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for Skin-diving. You can clean ships without taking them out of the water. You can get many things from the deep sea.

Now you can see that Skin-diving is both useful and interesting.

小题1: Skin-diving can take you to _________.

A．an exciting world

B．a new world

C．a beautiful world

D．an interesting and new world小题2: This sport _________.

A．is like to travel on the moon

B．is like to play in water

C．is like to visit a new country

D．is like to climb a big rock小题3:You can stay in deep water for a long time because __________.

A．you can swim

B．you can take tanks of air with you

C．you can bring something to eat

D．you can skin diving小题4:Which of the following statements is NOT true ?

A．Skin-diving is a new sport.

B．Skin-diving is like visiting the moon

C．The only use of skin-diving is to have more fun.

D．Skin-diving is not only interesting but useful.小题5: Skin-diving is a useful and interesting sport because __________.

A．you can catch fish with your hands

B．you can clean the ship in the water

C．you can get many things from the deep sea

D．all of the above

一个项目具有一个项目主管，一个项目主管可管理多个项目，则实体“项目主管”与实体
“项目”的联系属于______的联系。

肠梗阻时，呕吐物多为

A．含血液
B．隔夜食物
C．大量黏液
D．咖啡色
E．黄绿色稀薄液

建设工程总承包的主要意义是通过设计与施工过程的组织集成，最终达到( )的目的。

A．为建设项目增值

B．节约项目总投资

C．简化项目组织结构

D．保证项目施工质量

崔某在北京工作，但家在吉林，1991年春节时要回家探望家人。邻居胡某听说后请他带1斤长白山的人参回来，说要泡酒做药用。春节过后，崔某从吉林带回1斤人参，价值1850元，崔某送至胡家，胡某的儿子说因父亲年事已高，春节期间不幸过世。以前也只有他父亲用人参泡酒做药用，现在他父亲不在了，也就不需要这斤人参，况且他父亲是在他生前委托他代买1斤人参，现在他父亲去世了，代理权也就终止了，所以请崔某将这斤人参自己留着再做处理。崔某不得已就去律师事所请教律师问问他可不可以让胡某的儿子收下这1斤人参并支付1850元的价款。崔某实施的代理行为的效力如何()

A．有效

B．无效

C．效力待定

D．可撤销