硫喷妥钠“超短效作用时间”的机制是()A.药物迅速从脑内转出到肌肉 B.药物迅速从脑

题型:单项选择题

问题:

硫喷妥钠“超短效作用时间”的机制是()

A.药物迅速从脑内转出到肌肉

B.药物迅速从脑内分布到脂肪

C.药物迅速从脑内转移到内脏

D.药物体内迅速破坏

E.药物体内迅速排泄

考点:麻醉(医学高级)静脉全身麻醉药静脉全身麻醉药题库
题型:单项选择题

明代赋役征银和清代征收“地丁银”从根本上反映了()

A.封建国家对农民的赋税加重

B.货币地租逐渐取代实物地租

C.商品经济的进一步发展

D.封建国家对农民的人身控制的松弛

题型:单项选择题

下列各句中,加粗的成语使用错误的一项是[ ]

A.全区各学校教师纷纷加入到“阅读经典,亲近母语”的读书活动中去,对学生产生了潜移默化的影响。

B.这位来自农家的残疾孩子孜孜不倦地在求学道路上探索前行,用自己的方式对成才作出了自己独特的诠释。

C.为使我们的家园更加美好,数百名志愿者走上街头,指手画脚劝导交通倡行文明。

D.从新城区到老城区,沿街庄重典雅的建筑,精致中透着秀气的园林,温文尔雅、朴实守礼的市民使游客们的喜悦油然而生

题型:单项选择题

阅读理解。

     Between school, homework, sports, your afterschool job, and hanging out with friends, it may feel

like there's no time for healthy eating. And when you do stop to eat, it's probably tempting to go the

quick and easy route by grabbing a burger and fries, potato chips, or candy.

     Even if you take time to eat three meals a day, you may still feel hungry at times.  This is natural-during

teens, a person's body demands more nutrients to grow. What's the answer? Healthy snacks. Snacking

on nutritious food can keep your energy level high and your mind alert without taking up a lot of your

time. Snacks are a great way to satisfy that hunger and get all the vitamins and nutrients your body

needs.

     But you need to pay attention to what you eat. Filling your face with a large order of fries after class

may give you a temporary help, but a snack high in fat and calories will only slow you down in the long

run.

     To keep energy levels going-and avoid weight gain-keep clear of foods with lots of simple

carbohydrates (sugars) like candy bars or soda. Look for foods that contain complex carbohydrates

like wholegrain breads and cereals and combine them with proteinrich snacks such as peanut butter or

lowfat yogurt (酸奶) or cheese.

     Choosing healthy snacks means shopping smart. Be careful of the health claims on food packages.

Just because something is "all natural" or "pure" doesn't necessarily mean that it's nutritious. For example, "all natural" juice drinks or sodas can be filled with sugar (which is, after all, a natural ingredient) but all

that sugar means they'll be high in calories and give you little nutrition.

     A granola (麦片) bar is a good example of a snack that people think is healthy. Although granola

bars can be a good source of certain vitamins and nutrients, many also contain a great deal of fat,

including a particularly harmful type of fat called trans fat (反式脂肪酸). Check the Nutrition Facts label

on the package to be sure.

1. People think that granola bar is healthy because ________.

A. it is a good source of calories                        

B. it provides trans fat

C. it contains some vitamins          

D. it is natural

2. In choosing healthy snacks, we should try to make sure that ________.

A. they are all natural or pure                          

B. they are high in nutrition

C. their packages are good                  

D. they contain harmless fat

3. Teens need snacks to ________.

A. keep a good figure            

B. gain weight

C. help grow                  

D. keep healthy

4. According to the passage, all the following snacks are good EXCEPT ________.

A peanut butter                        

B. fries

C. lowfat yogurt                        

D. wholegrain bread

题型:单项选择题

下列命题




④若


中正确的是

题型:单项选择题

"Z值"是用来评价

A.主动脉瓣发育情况
B.左室发育情况
C.三尖瓣发育情况
D.二尖瓣发育情况
E.肺动脉瓣发育情况

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