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问题 选择题
在
1
2
、
12
、
x+2
、
40x2
、
x2+y2
中，最简二次根式有（　　）
A．1个B．2个C．3个D．4个
答案

在

1
2
、
12
、
x+2
、
40x2
、
x2+y2
中，最简二次根式为
x+2
、
x2+y2
．

故选B．

阅读理解
阅读理解。
    President Hu Jintao flew to the earthquake-hit region in Yushu,
Qinghai on April 18, 2010. At a field hospital on the grounds of a
sports stadium, Hu sat on the bed of Drolma, a middle school
student, and held her in his arm as she wept (哭泣). "Rest assured
(放心的), you will have a full recovery (康复). Be strong. You will
have a bright future," he told her.


The 2010 World Expo,
    Shanghai
     China		The 2010 World Expo Shanghai
China Duration (举办时间): May 1 to October 31, 2010
Expected visitors: 70 million
Theme (主题): "Better City, Better Life."
     The theme represents the common wish of the people all over the
world for a better living in future urban (城市的) environments.

The 19th FIFA World Cup (世界杯足球赛)
Duration: June 11 to July 12, 2010
Host (主办) nation: South Africa
Number of teams: Thirty-two
Number of matches: Sixty-four
     It is the first time that the tournament (锦标赛) has been hosted
by a nation in the Confederation (联盟) of African Football.
1. President Hu Jintao flew to Yushu, Qinghai _______, 2010.
A. on May 1
B. on June 11
C. on April 18
D. on July 12
2. President Hu Jintao comforted (安慰) _______ at a field hospital.
A. a middle school student
B. a soldier
C. a farmer of Yushu
D. a doctor
3. The 2010 World Expo in Shanghai will end on _______.
A. September 30
B. October 31
C. November 30
D. December 31
4. The theme of Expo 2010 is "_______".
A. Better City, Bright future.
B. Better City, Good Environment.
C. Better City, Better Life.
D. Better City, Best Investment (投资).
5. There will be _______ teams taking part in the 19th FIFA World Cup.
A. 10
B. 12
C. 13
D. 32
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多项选择题

PDCA循环的特点（）

A.大环套小环

B.螺旋上升

C.综合性循环

D.“计划”阶段是关键

E.“处置”阶段是关键
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