病人以前出现过痰中带血，可能的原因是A．右心功能衰竭 B．左心功能衰竭 C．肺静脉高

甲、乙、丙三种溶液中各只含有一种X^-（X^-可能为Cl^-、Br^- 或I^-），向甲中加入淀粉溶液和氯水，溶液变为橙色，再加入丙溶液，颜色无明显变化，则甲、乙、丙中依次含有[ ]

A．Br^-、Cl^-、I^-

B．Br^-、I^-、Cl^-

C．I^-、Br^-、Cl^-

D．Cl^-、I^-、Br^-

阅读理解

                                                     Columbus College , 241 Queen

                                                     Elizabeth Drive , Kowloon City

Memo

To: All Staff

From: Jakie Mok, Secretary; Sports Development Committee

Date: May 20, 2010

     A week ago, "Sports for life" programme was sent to the parents, requiring them to select a sport they wanted their child to play. Since then, our stuff have received lots of calls from parents asking for more

information about it. Here is a memo(备忘录) for your reference when you answer the phones.

Sports 1 : Basketball

     We expect that this will be the most popular of the four sports. Therefore, students should be advised

to sign up as soon as possible. Students will take a private bus to and from Kwun Tong Sports Park. To

cover the cost of hiring a bus , each student will have to pay ﹩10 each time. There will be four basketball courts available for our use with one teacher watching over each game.

Sports 2: Gym

     We will be using St. Peter's Memorial Park. There are two reasons for choosing this park. First, it is

not very busy and crowed before 6:00pm. Second, it has lots of trees with plenty of shade. Students

must bring along two bottles of water to prevent thirst. Three activities, skipping, jogging, outdoor

aerobics一(有氧运动), all of which are free of charge, will be arranged. And there will be a teacher on

duty for each of the activities.

Sports 3:Hiking

     Hiking(远足)will take place at Kowloon Peak. The activity will start at 2:30pm and finish 90 minutes

later. Three teachers will accompany the students, and a hiking instructor will accompany each group of

15 hikers. Each instructor will cost﹩75/hr. Students are advised to bring plenty of water and sunscreen.

Sports 4: Swimming

     The Kowloon City Aquatic Centre is a 10-minute walk from our school. Four teachers will go to the

pool and conduct the goings-on from the poolside. We will only be able to reserve the pool for one hour (2:45pm-3:45pm). Only students skillful at swimming can take up this activity. The poor will have two

lifeguards present. Girls must wear a swimming suit. The cost is﹩10 per visit.

1. Which of the following is TRUE according to the passage?

A. Students selecting basketball had better register early.

B. Students participating in gym should arrive at 6:00 pm.

C. Hiking usually begins at 2:30pm and lasts 2 hours.

D. Students having swimming suits can take up swimming.

2. It can be inferred from the passage that_______.

A. Students taking part in basketball will walk to the courts

B. every student can gain admission to one of the four sports

C. hiking students can have a regular rest in the shade of trees

D. students taking up the four sports should bring bottles of water

3. It can be concluded that_________.

A. each sport will take only one hour

B. students will be charged for the four sports

C. all the sports will take place at Kowlo Peak.

D. teachers will accompany students on each sport.

4. The purpose of the memo is to______.

A. attract students' interest in the programme

B .require the parents to select a sport for their child

C. help the staff explain the programme to the parents

D. remind teachers and lifeguards to be present on time  

钨极氩弧焊时，如何选择氩气的流量？

用速录键盘进行替换同音词的功能键是（）。

A.XAN：N

B.XAN：O

C.XAN：A

D.XAN：G

PHOTOSHOP中，工具箱中有几个文字工具。（）

A.1

B.2

C.3

D.4