IPCC可以提供窄带能力包括（）。 A.DTMF B.SS7 C.放音 D.录音 E

第二节（共5小题；每小题2 分，满分10 分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

The right pair of exercise shoes can do a lot to prevent discomfort and injuries, personal trainers say. Here are some shopping tips:

71   Depending on your workout, shoes designed for walking, running, tennis, or something else that will provide the best support for your feet.

Shop when you normally exercise. Feet actually get bigger throughout the day, sometimes swelling(肿胀) up as much as a half-size by nighttime.   72  

Try them on .Never take a pair of exercise shoes based only on the size of footwear you normally buy. Bring the type of socks you’d wear to work out and go for a walk through the store.

73     you should be able to spread your toes out comfortably. Make sure there’s about a half-inch of space between them and the front of the shoe. The back should fit snugly(warmly and comfortably) against your heel and not move up and down. If your feet are different sizes, buy based on the larger one.

Talk to an expert. Shoe salesmen and personal trainers can study your stride(步伐) and the shape of your feet.   74  

75   Many trainers recommend changing footwear every three to five months, if possible, to maintain（保持） proper cushioning (软垫) and support.

One tip: if you have to tie your shoes very tightly to feel a good amount of support, they may be ready to go.

A．Think about how much you can afford to buy the workout shoes.

B．Consider your type of exercises.

C．Focus on fit

D．So don’t shop first thing in the morning if you often work out in the evening.E.Pay more attention to new style shoes.

F.Replace worn shoes regularly

G.Usually they can recommend the best shoes to guard against injuries.

工人站在地面用滑轮组匀速提升重物，请在图中所示的滑轮组上画出绕线。（2分）

男，32岁。被车撞伤在左腰部，伤后腰部痛，全程血尿伴血块10小时。BP70/50mmHgP120次／分，左腰部包块季肋下5指并触痛，经输血800ml血压仅上升到80/60mmHg，尿色无改变，左腰部肿块增大。B超为肾裂伤，对侧肾正常。该患者应立即采取的最佳治疗方法是（）

A.快速输血补液

B.经腹行肾切除术

C.继续输血下经腹行肾切除术

D.经11肋间切口行肾切除术

E.继续输血下经腹先阻断肾蒂，根据情况采取肾修补术、肾部分切除术或肾切除术

有以下程序
void f(int v,int w)
int t;
t=v;v=w;w=t

main()
int x=1,y=3,z=2；
if(x＞y)f(x,y)；
else if(y＞z) f(y,z)；
else f(x,z)；
pfintf("%d,%d,%d\n",x,y,2)；

执行后输出结果是

A．1，2，3

B．3，1，2

C．1，3，2

D．2，3，1

使用车用乙醇汽油是否会损坏汽车燃油系统的金属零部件？