在消化道黏膜免疫中发挥主要作用的抗体类型是（）A、IgG B、IgM C、IgA

明明每天坚持晨跑，一星期跑了6200米，平均每天大约跑多少米？

An Israeli law banning too skinny models went into effect with the start of 2013. The law, approved last March in Israel, requires models to prove they have maintained a Body Mass Index (BMI) of at least 18.5 for three months before a fashion show. That means a woman who is 5'8'' tall can weigh no less than 119 pounds.

“This law is another step in the war against eating disorders,” said physician Adatto. “Underweight models,” he explained, “can no longer serve as role models for innocent young people who copy their false image of being skinny.”

But some critics in this country say it is misguided, focusing on weight instead of health. They also say the Israeli ban is bound to fail because of the strong power of the fashion industry. “I think it’s an approach that isn’t going to work.” Said eating disorder expert Susan Ice, who worked with an organization which creates a healthy working environment for models.

But Adatto told the reporter that he began to concern the issue after meeting an ambitious model who looked like she needed to be hospitalized. He said. “I realized that only legislation can change the situation. There was no time to waste, so many girls were dieting to death.”

However, the efforts to regulate models’ weight in Spain and Italy have not resulted in significant changes in part because of difficulties in determining reliable methods of measuring weight and health.

Still, folks including Ice say there’s no denying that images from Hollywood and the fashion industry can be difficult for young women to deal with. “Certainly I don't believe the modeling industry has caused the rise in eating disorders, but it makes it harder,” she says. “It’s a difficult recovery environment, worshiping thinness as the beauty ideal.”

小题1:What does BMI in the first paragraph refer to?

A．A new show held by those skinny models.

B．A worldwide prize for the healthiest model.

C．A measure of body health based on height and weight.

D．A kind of medicine to cure eating disorders.小题2:One benefit the new Israeli law may bring is ________.

A．to change the working conditions of models

B．to prevent models from suffering from eating disorders

C．to lower the chance of skinny models’ death

D．to provide guidance for women worshiping thinness小题3:In the opinion of the critics, the law won’t succeed because         .

A．the fashion industry is much too influential

B．it misleads young women to form a bad eating habit

C．it doesn’t provide a proper approach that can work well

D．it doesn’t create a healthy working environment for models小题4:According to the passage, the new Israeli law banning skinny models is         .

A．practical

B．acceptable

C．reasonable

D．controversial

______承销团成员的资格审批由财政部会同中国人民银行实施，并征求中国银监会的意见。

A．记账式国债
B．凭证式国债
C．储蓄式国债
D．地方政府债券

试述枝条生长、花芽分化、果实生长间的关系。