Y染色体短臂上的SRY基因的表达产物，使未分化性腺向睾丸方向发育。

以下程序的输出结果是( )。
#include＜stdio.h＞
main()
int a=15, b=21, m=0,
switch(a%3)
case 0:m++; break;
case 1:m++;
switch(b%2)
default:m++;
case 0:m++; break;
printf("%d\n"，m);

A) 1
B) 2
C) 3
D) 4

计算：（-a）²-（a²）²÷a³=______．

(五) 甲房地产开发公司(以下简称甲公司)开发了一住宅和商业混合项目，委托乙房地产经纪公司(以下简称乙公司)代理销售。经与甲公司协商，乙公司为项目住宅部分的目标客户制订了置业计划；对项目商业部分采取先租后售的方式促销。客户李某在项目交房前1年购买了一个建筑面积为400m2、总价为1152万元的商铺。经调查，类似商铺当时月租金为200元／㎡。乙公司房地产经纪人张某制订的置业计划得到了很多客户的认同。

张某因制订置业计划表现出的品质可能为（）。

A．业务熟练

B．圆滑而善变

C．热情而真诚

D．善于团队协作

After two classes, I started to recognize several of the faces in each class. There was always someone braver than the others who would introduce themselves and ask me questions about how I was liking Forks. I tried to be diplomatic, so mostly I just lied a lot to appear to be skilled at dealing with people. At least I never needed the map.

One girl sat next to me in both Trig and Spanish, and she walked with me to the cafeteria for lunch. She was tiny, several inches shorter than my five feet four inches, but her wildly curly dark hair made up a lot of the difference between our heights. I couldn't remember her name, so I smiled and nodded as she gossiped about teachers and classes. I didn't try to keep up.

We sat at the end of a full table with several of her friends, who she introduced to me. I forgot all their names as soon as she spoke them. They seemed impressed by her bravery in speaking to me. The boy from English, Eric, waved at me from across the room.

It was there, sitting in the lunchroom, trying to make conversation with seven curious strangers, that I first saw them.

They were sitting in the corner of the cafeteria, as far away from where I sat as possible in the long room. There were five of them. They weren't talking, and they weren't eating, though they each had a tray of untouched food in front of them. They weren't staring at me, unlike most of the other students, so it was safe to stare at them without fear of meeting an over interested pair of eyes. But it was none of these things that caught and held my attention.

I stared because their faces, so different, so similar, were all extremely, inhumanly beautiful. They were faces you never expected to see except perhaps on the airbrushed pages of a fashion magazine, or painted by an old master as the face of an angel. It was hard to decide who was the most beautiful -- maybe the perfect blond girl, or the bronze-haired boy.

小题1:What does the underlined word “diplomatic” mean?

A．smooth

B．clever

C．honest

D．delight小题2:From the passage, we can infer that _______________.

A．“I” was really liking the new place.

B．“I” was not interested in what the girl said.

C．“I” had a bad memory, so it’s hard to remember names.

D．“I” was good at making friends.小题3: According to the last two paragraphs, why did “they” catch “my” attention?

A．Because “they” weren’t talking.

B．Because “they” sat in the corner.

C．Because “they” didn’t eat the food.

D．Because “they” looked incredibly beautiful.小题4:According to the passage, which statement is NOT true?

A．The girl walked with “me” was a little short.

B．“I” saw the five students for the first time.

C．Those students sitting in the corner had finished their food.

D．“I” probably wanted to know more about those five students.

现阶段长城商户通的主要功能包括哪些？