题目内容
（请给出正确答案）
Vitamins are complex ________ that the body requires in very small mounts.
A．matters
B．materials
C．particles
D．substances
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更多“Vitamins are complex ________ …”相关的问题
A．variety
B．fraction
C．section
D．series
A．transforming
B．transferring
C．altering
D．shifting
By "if the fuel isn't there, the spark is useless", the author means______.
A．carbohydrates, protein and fat are enough to sustain a human life
B．vitamins and minerals are virtually of no value
C．carbohydrates, protein and fat are as important as vitamins and minerals
D．without carbohydrates, protein and fat, vitamins and minerals are of no use
They do not provide energy,【21】do they construct or build any part of the body. They are needed for【22】foods into energy and body maintenance. There are thirteen or more of them, and if【23】is missing a deficiency disease becomes【24】.
Vitamins are, similar because they are made of the same elements--usually carbon, hydrogen, oxygen, and【25】nitrogen. They are different【26】their elements are arranged differently, and each vitamin【27】one or more specific functions in the body.
【28】enough vitamins is essential to life, although the body has no nutritional use for【29】vitamins. Many people,【30】, believe in being on the "safe side" and thus take extra vitamins. However, a well-balanced diet will usually meet all the body's vitamin needs.
(36)
A．either
B．so
C．nor
D．never
They do not provide energy,【31】do they construct or build any part of the body. They are needed for【32】foods into energy and body maintenance. There are thirteen or more of them, and if【33】is missing a deficiency disease becomes【34】
Vitamins are similar because they are made of the same elements—usually carbon, hydrogen, oxygen, and【35】nitrogen. They are different【36】their elements are arranged differently, and each vitamin【37】one or more specific functions in the body.
【38】enough vitamins is essential to life, although the body has no nutritional use for【39】vitamins. Many people,【40】, believe in being on the "safe side" and thus take extra vitamins. However, a well-balanced diet will usually meet all the body's vitamin needs.
(31)
A．either
B．so
C．nor
D．never
Chickens raised in poultry farms are all of the following EXCEPT that ________.
A．they are fed on food which is little better than garbage
B．they live in very crowded condition
C．the eggs they lay lack vitamins
D．they are allowed to move about and eat freely
The body needs A-34 and vegetables because they contain vitamin C. Many people take extra vitamins A-35 pill form, believing that these will make them healthy.
But a good A-36 is made up of nourishing food and this gives all the vitamins you need. The body doesn’t need or use extra vitamins, A-37 why waste money on them？
In the modern western world, many people are A-38 busy to bother about eating properly. They throw anything into their stomachs, eating hurriedly and A-39. The list of illnesses caused or made worse by bad eating _A-40 is frightening.
31.Which one is the best to fill in the blank？
A、to
B、with
C、of
D、from
32.Which one is the best to fill in the blank？
A、treatment
B、measurement
C、movement
D、statement
33.Which one is the best to fill in the blank？
A、apart
B、altogether
C、away
D、alone
34.Which one is the best to fill in the blank？
A、meat
B、milk
C、fish
D、fruits
35.Which one is the best to fill in the blank？
A、on
B、for
C、of
D、in
36.Which one is the best to fill in the blank？
A、diet
B、habit
C、style
D、life
37.Which one is the best to fill in the blank？
A、otherwise
B、however
C、so
D、although
38.Which one is the best to fill in the blank？
A、very
B、too
C、extremely
D、much
39.Which one is the best to fill in the blank？
A、carefully
B、quietly
C、carelessly
D、noisily
40.Which one is the best to fill in the blank？
A、habits
B、hobbies
C、manners
D、behaviors
