根据下列资料，回答下列各题。 

2013年1~7月份，某市规模以上工业增加值同比增长12.0%，增速比去年同期提高1.4个百分点。 

1~7月份，全市国有及国有控股企业完成增加值同比下降3.5%；民营企业完成增加值同比增长24.8%；外商控股企业完成增加值同比下降3.1%。三者增加值占全市规模以上工业增加值总量的比重为20：62：18。轻工业完成增加值同比增长17.4%；重工业完成增加值同比增长10.1%。轻重工业增加值占全市规模工业总量的比重为28：72，与去年同期持平。 

在37个行业中，向上拉动全市工业经济增长较大的行业有：化工行业完成增加值176.2亿元，同比增长81.3%；医药制造业完成增加值21.2亿元，同比增长24.7%；农副食品加工业完成增加值223.5亿元，同比增长19.6%；服装行业完成增加值56.7亿元，同比增长19.4%；专用设备制造业完成增加值118.4亿元，同比增长16.0%；通用设备制造业完成增加值272.9亿元，同比增长15.5%;汽车制造业完成增加值57.4亿元，同比增长9.3%。向下拉动工业经济增长较大的行业有：石油加工业完成增加值168.5亿元，同比下降1.5%；电子信息业完成增加值63.4亿元，同比下降12.2%;铁路船舶制造业完成增加值89.2亿元，同比下降26.9%。 

1~7月份，全市完成销售产值6258.1亿元，同比增长12.7%，其中，完成国内销售产值4995.2亿元，同比增长15.7%；完成出口交货值1262.9亿元。 

1~7月份，全市实现软件销售收入712亿元，同比增长25.8%，出口22亿美元，同比增长19.5%。实现利润50.8亿元，同比增长20.9%，实现税金51.2亿元，同比增长26.8%。

下列统计图中，（）最接近2012年1~7月份该市国有及国有控股企业、民营企业和外商控股企业完成增加值占全市规模以上工业增加值总量的比重构成。

A.A

B.B

C.C

D.D

In 1953, the New Zealander Edmund Hillary, then 33, joined a British Qomolangma expedition led by Colonel John Hunt. Tom Bourdillon and Charles Evans were the first team to attempt the summit (顶峰). Despite a violent storm, they reached the South Summit — at 28,700 feet (8,748 meters) — by 1 p.m. on May 26. But both men knew they would run out of oxygen if they went on. They agreed to turn back.

Two days later, Hillary and Norgay, set out from Camp IX at 25,900 feet to make the next attempt. At 27,900 feet they made a temporary camp on a six foot wide rock to spend the night. At 6:30 the next morning, cheered by clearing skies, the team moved out. Roped together, cutting steps with their ice axes, they inched up a steep, knife-edged ridge (山脊) southeast of the summit. They reached the South Summit by 9:00 a.m.

Farther up, they met a 40-foot icy rock face, which was later named the Hillary Step. “…looking up at the rock step at 29,000 feet, it really did look extremely difficult to overcome,” said Hillary. But they found a narrow crack on the surface of the rock, just large enough to move inside on hands and knees, and managed to climb it by supporting feet against one side and backs against the other. Hillary said, “That was really the first moment during the whole of the expedition that I was confident that we were going to get to the top.” 

The last few yards to the summit were relatively easy. “Then I realized that the ridge, instead of rising ahead, now dropped sharply away,” Hillary said. “I looked upward to see a narrow ridge running up to a sharp point. …and we stood on the summit.” It was 11:30 a.m. on May 29, 1953.

小题1:What is the passage mainly about? 

A．The climbing history of Qomolangma.

B．The life and achievements of Edmund Hillary.

C．How Hillary and Norgay conquered Qomolangma.

D．How the Hillary Step got its name.小题2:At what height did Hillary and Norgay set out on May 29? 

A．25,900 feet.

B．27,900 feet.

C．28,700 feet.

D．29,000 feet.小题3:According to Paragraph 2, one of the main advantages to Hillary and Norgay was        .

A．fine weather conditions

B．good rest the night before

C．enough food supplies

D．good climbing skills小题4:When looking back, Hillary described the Hillary Step as        .

A．much easier to climb than she expected

B．impossible for her to overcome again

C．easy to climb up but hard to climb down

D．one of the biggest barriers before the summit