煤矿企业、矿井应当建立健全那四种防治水制度？

Every country has its own way of cooking．Ameri can people have their own way of cooking，don't they?Most people in the United states like fast food，but if  you think that American people don't 1 ike cooking，you are wrong．It's true that most Americans eat fast food for their breakfast and lunch，but they also think cooking is interesting．Parents see the importance of teaching their children how to cook，and most Americans say that home—cooked meals are the best．

Americans have their own way of cooking．For example，baking(烘烤)is the most popular way of cooking in America．Most American families have ovens(烤炉)．American cooks(厨师)pay attention to(注意)the balance of food．When planning a big meal，they try to cook meat，a few vegetab]es，some bread and sweet food．They also like to make the meal look beautiful．There are so many kinds of colorful foods，so the meal is healthy and look beautiful，too．

小题1:Most Americans  ______．

A．don't like cooking

B．cook food in the morning

C．1ike home-cooked meals

D．1ike having a picnic小题2:What does the sentence“It's true that most Americans eat fast food for their breakfast and lunch”mean?It means______．

A．they don't eat dinner

B．they like eating fast food

C．they only eat fast food

D．they can't cook小题3:______is the most popular way of cooking jn the USA．

A．Baking    B．Cutting    C．Frying     D．Boiling

小题4:How does an American cook balance different kinds of food?

A．He cooks a lot of meat．

B．He cooks meat，regetables，bread and sweet food for a big meal．

C．He makes the food delicious．

D．He cooks a lot of vegetables．小题5:Which is TRUE according to the passage?

A．The meal looks beautiful because the foods are in different colors.

B．American people only cook at home in the evening．

C．American parents don't like to teach their children to cook．

D．Most people in the United states don't 1ike fast food at a11．

男性，45岁。发热、咳嗽1周，曾少量咳痰伴痰中带血3次。胸片示右中叶3cm×3cm类圆形阴影，中间可见空洞，无液平。痰找结核菌1次，结果阴性，胸部CT示空洞为偏心空洞，部分洞壁有结节状隆起。进一步的检查应首先考虑（）

A.重复痰找结核菌

B.试验性抗感染治疗

C.试验性抗结核治疗

D.纤维支气管镜活检

E.肿瘤标志物检查

樟树树干内运输有机物的通道是

A．导管

B．筛管

C．导管和筛管

D．叶脉

某纳税人违反税收有关规定，应罚款1500元，则税务行政处罚主体可以是（）。

A.稽查分局

B.税务所

C.某区国家税务局

D.税务师事务所

简述自动卸载阀的作用？