六(2)班某一天的出勤率是98%,这一天缺勤1人,这一天六(2)班出勤的有多少人

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问题:

六(2)班某一天的出勤率是98%,这一天缺勤1人,这一天六(2)班出勤的有多少人?

考点:百分数的计算,百分数的应用题
题型:解答题

阅读理解。

     Bicycles are very popular around the world today. People ride their bicycles for exercise and enjoyment.

In some places,people use a bicycle to get to work. In other places,bicycle riding is a very popular exercise

to people who live in cities. But who invented the first bicycle? In 1791, a Frenchman named Comte de

Sovran invented and owned the first bicycle. Mrs. Sovran rode (骑) the bicycle in Paris. The handles (把手)

and the seat were wooden. This bicycle was very difficult to move. A rider even had to pick up the front

wheel to change direction. Finally, the bicycle had no brakes for stopping or pedals for the feet! Riding a

bicycle was a great risk.

     In 1817, a German named Baronvon Drais de Sauer burn made the first bicycle better. The seat became

more comfortable. The wheel could now change direction. His ride in the forest took only one hour instead

of three hours on foot, which surprised people at that time.

      Sauer burn brought this kind of bicycle from Germany to France. Then Denis Johnson, an Englishman,

made a bicycle for women. It had space for their dresses to hang down. But these bicycles still had no brakes

or pedals,and riders often got hurt. These bicycles and the people who rode them were not very popular.

     It took another forty-five years for the bicycle to become popular. More than 100 years later, bicycle riding

is more popular than ever. In fact, in India and China, there are still many more bicycles than ears.

1. Which of the following best describes the first bicycle?

A. Very popular.

B. Easy to carry.

C. Ugly-looking.

D. Difficult to ride.

2. Why was it a risk to ride the first bicycle?

A. Because it had no pedals for the feet.

B. Because it was difficult to control (控制).

C. Because people would laugh at you.

D. Because handles and the seat were wooden.

3. Which of the following was not improved by Sauer burn to the first bicycle?

A. Brakes were added to it.

B. It was made to go faster.

C. The wheel could now change direction.

D. The seat was made more comfortable.

4. What's the major difference between Denis Johnson's bicycle and the earlier ones?

A. It was more comfortable.

B. It was faster and safer.

C. It had space for the rider's dress.

D. It had metal handles and seat.

5. The best title (题目) for the passage would be _______.

A. Bicycles Around the World

B. How to Ride a Bicycle

C. The Greatest Invention

D. The First Bicycle

题型:解答题

下列离子方程式正确的是[ ]

A.乙酸与碳酸钠溶液反应:2H++CO32- == CO2↑+H2O

B.醋酸溶液与新制氢氧化铜反应:2H++Cu(OH)2→Cu2++2H2O

C.苯酚钠溶液中通入少量二氧化碳:2C6H5O+CO2+H2O→2C6H5OH+CO32- 

D.甲醛溶液与足量的银氨溶液共热 HCHO+4[Ag(NH3)2]++4OHCO32- +2NH4+ +4Ag↓+6NH3+2H2O

题型:解答题

女性,22岁,怕光、发热、咳嗽1月余。查面部红斑,心肺(-)、血沉增快,体温37.4~38.6℃。最可能的诊断是

A.急性支气管炎
B.上呼吸道感染
C.日光性皮炎
D.皮肌炎
E.SLE

题型:解答题

并不是每条输油管道或每个输油站都需要所有流程,应根据具体情况选择。例如()流程是为了投产前预热管道,或末站储罐已满,或首站油源不足,被迫交替正、反输以维持热油管道最低输量。

A.正输

B.反输

C.越站

D.清管

题型:解答题

清算所

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