锅炉一般设有（）个安全阀，通过安全阀的调压弹簧可以调整其开启压力，开启压力的大小可为

The common Chinese greeting of “Ni chi le ma?” may soon be  replaced (代替) by a new greeting: “Have you cleaned your plate?”

The Clean Your Plate Campaign(运动) began on the Internet in January, 2013. It calls on people to reduce food waste. China in recent years has experienced serious problems with wasted food. CCTV reported in January that the food Chinese people waste every year is enough to feed 200 million people for a year.

Chinese people are well-known for their friendly behavior towards guests. Many even feel that they lose face if their guests have eaten all the food.

It’s important for everyone to reduce food waste. However, wasting food is still a serious problem in China. We still have a long way to go.

President Xi Jinping is encouraging people to be less wasteful(浪费的), and he told Party members to cut back on wasteful holiday banquets(宴会). He said they should be more careful when spending the people’s money.

Wasting food certainly goes against what Xi Jinping calls, “the Chinese tradition of being hardworking and thrifty(节俭).” Having a “clean plate” is just a traditional and important thing to do.

小题1: The Clean Your Plate Campaign calls on people to ________.

A. reduce food waste           

B. be more friendly to guests  

C. deal with serious problems

小题2: Which of the following is True according to the passage?

A. The Clean Your Plate Campaign began online in January, 2013.

B. Chinese people waste food for 200 people in a year.

C. Chinese guests like to eat up all the food on the table.

小题3:We can learn from the passage that ________.

A. plates must be kept clean

B. Party members like to waste the people’s money

C. it’s difficult to deal with food wasting problem

小题4:The underlined phrase “cut back on” in the 5th paragraph(段落) probably means “________”.

A. 增加    B. 保持    C. 减少

小题5: The passage is written to ________.

A. introduce a new way of greeting

B. encourage people to be less wasteful

C. call on people to work hard for our country

进度计划的调整方法包括______。

A．改变工作的最早开始时间

B．改变工作之间的逻辑关系

C．将关键工作压缩为非关键工作

D．重新编制网络计划

E．改变子项目工作延续时间

甲厂于10月4日到乙公司购买一批原料，当场提货并付款25000元。次日，甲厂因货物质量不合格，将这批原料退回乙公司，乙公司签收，但未退款。10月7日，甲厂到乙公司购买电器一批，价款28000元，提货时与乙公司约定2日内付款。2日期满，甲厂未付款，乙公司上门催收。双方发生争议，甲厂认为前后债务相抵，只需支付3000元。依据债的消灭原理，对此案的处理意见正确的是( )。

A．甲厂应先付给乙公司28000元，再请求乙公司退款25000元
B．乙公司应先退给甲厂25000元，再请求甲厂付款28000元
C．甲厂付给乙公司3000元，双方了结债务
D．甲厂应付给乙公司14000元，待乙公司退款之后，再付给14000元

该患者病情严重程度为

A．轻度

B．中度

C．重度

D．特重度

E．不确定

Windows 98操作系统支持3种不同的网络：对等式(peer-to-peer)网络、【 】和 远程网络。