证券交易风险从证券公司的角度来看一般可分为（　　）。A．证券自营业务风险、证券经纪业

扩张型心肌病的主要体征是（）

A.心音减弱

B.心脏扩大

C.下肢水肿

D.心尖部收缩期杂音

E.端坐呼吸

医疗机构制剂是指（）

A.医疗机构根据本单位临床或科研需要而配制的固定处方制剂

B.医疗机构根据本单位临床或科研需要而常规配制、自用的固定处方制剂

C.医疗机构根据本单位临床需要而市场没有供应的常规配制、自用的固定处方制剂

D.医疗机构根据本单位临床需要而常规配制的固定处方制剂

Questions l-5 are based on Passage One:Passage OneLong bus rides are like television shows. They have a beginning,a middle, and an end-with commercials thrown in every three or four minutes. The commercials are unavoidable. They happen whether you want them or not. Every couple of minutes a billboard glides by outside the bus window. “Buy Super Clean Toothpaste”“Drink Good’n Wet Root Beer.”“Fill up with Pacific Gas.”Only if you sleep, which is equal to turning the television set off,are you spared the unending cry of "You Need It! Buy It Now!"The beginning of the ride is comfortable and somewhat exciting, even if you’ve traveled that way before. Usually some things have changed-new houses, new buildings, sometimes even a new road. The bus driver has a style of driving and it’s fun to try to figure it out the first hour or so. If the driver is particularly reckless or daring, the ride can be as thrilling as a suspense story. Will the driver pass the truck in time Will the driver move into the right or the left-hand lane After a while, of course, the excitement dies down. Sleeping for a while helps pass the middle hours of the ride. Food always makes bus rides more interesting.But you’ve got to be careful of what kind of food you eat. Too much salty food can make youvery thirsty between stops.The end of the ride is somewhat like the beginning. You know it will soon be over and there’s a kind of expectation and excitement in that. The seat, of course, has become harder as the hours have passed. By now you’ve sat with your legs crossed, with your hands crossed behind your head. The end comes just at the right time. There are just no more ways to sit.

What is the purpose of this passage ( )

A．To give the writer’s opinion about long bus trips

B．To persuade you to take a long bus trip

C． To explain how bus trips and television shows differ

D．To describe the billboards along the road

296. Can you­________ that new word ____ for me, Jack?

A．spell…over

B．spell…out

C．write…in

D．write…with

下列选项中，属于上层文化的是______

A．宫廷礼仪

B．民间文学

C．文庙典礼

D．宗庙音乐

E．傩戏