防风锚链焊口不得开裂,链条的塑性变形伸长量不应达到原长度的()。A、5% B、6%

题型:单项选择题

问题:

防风锚链焊口不得开裂,链条的塑性变形伸长量不应达到原长度的()。

A、5%

B、6%

C、8%

D、10%

考点:闸门运行工考试闸门运行高级工闸门运行高级工题库
题型:单项选择题

有一竖直放置的“T”型架,表面光滑,两个质量相同的滑块A、B分别套在水平杆与竖直杆上,A、B用一不可伸长的轻细绳相连,A、B可看作质点,如图所示,开始时细绳水平伸直,A、B静止.由静止释放B后,已知当细绳与竖直方向的夹角为60°时,滑块B沿着竖直杆下滑的速度为v,则连接A、B的绳长为(  )

A.

4v2
g

B.

3v2
g

C.

3v2
4g

D.

4v2
3g

题型:单项选择题

YOUR mom might cook a bowl of noodle for you on birthday. But in the US, a mom makes a cupcake for her children on their birthday.

Cupcakes are small, round cakes topped with frosting. It has been an American tradition that moms bring cupcakes to celebrate their child’s birthday.

But recently some doctors have called for this to be banned. They believe cupcakes contribute to child obesity.

Despite their good intentions, however, some people believe that experts are interfering with American culture. The cupcakes is seen as American as apple pie only prettier.

According to Marion Nestle, a professor of nutrition at New York university, the cupcakes is the most democratic of desserts. As they are small enough for one person, you don’t have go share your cupcake with anyone –it’s all yours. They are also all the same size, so there can’t be any cries of “she got the bigger piece!”

Each bite can taste different depending on how much icing you have. It is a lesson in self determination. Some people eat only a little of the frosting every time, other have it all in just one bite.

In recent years, eating a cupcake has become as trendy as having a cup of Starbucks coffee.

Democratic presidential candidate Hillary Clinton jokingly promised on a talk show that if she was elected president, a he would give everyone a cupcake on her birthday.

Ruth Reichl, editor---in----chief of gourmet magazine, explains that the rise of the cupcake is very much about going buck to American national identity in food, which is all about comfort. “People want to about when they and their country were innocent,” she said.

1. According to the passage, it has been an American tradition that_______.

A. a party for children is held on their birthday

B. A mom cooks a bowl of noodles for her children on their birthday

C. A mom makes a cupcake for her children on their birthday and brings it to the classroom

D. parents go traveling with their children on their birthday

2. Why do doctors ask people to ban cupcake on children’s birthday?

A. Because they themselves don’t like cupcake

B. Because they think cupcakes are not so delicious

C. Because they believe cupcakes will cause cries of “she got the bigger piece”.

D. Because they believe cupcakes are one of the causes to make children become fat.

3. The following are true according to Marion Nestle expect that ______

A. the cupcake is more democratic than any other deserts in the US

B. the cupcake is too small to share with others

C. the sizes of cupcakes are the same so it is equal to everyone

D. cupcakes will lead to child obesity so they should be banned

4. Why did the writer mention Hillary Clinton and Ruth Reichl?

A. To arouse the readers’ attention  

B. To show that cupcakes are becoming a popular to show kindness and comfort.

C. To make a comparison between them

D. To give readers a general idea of cupcakes

题型:单项选择题

关于慢性肺心病心力衰竭的患者使用利尿剂,下列哪项是正确的()

A.水肿严重者应迅速利尿

B.出现浮水即可使用

C.血钾不高,利尿同时,只要患者有正常排尿即应常规补钾

D.为避免出现代碱,常用醋唑磺胺

E.足量,持续使用效果较好

题型:单项选择题

应对方式问卷评定的时间范围是最近()。

A.三个月

B.半年

C.一年

D.两年

题型:单项选择题

政党的立党之本是()。

A.党的规范

B.政 * * 程

C.指导思想

D.党的纪律

更多题库