[填空题]X-rays and gamma rays can be used to detect and treat cancer ______.

[判断题]FCA can be used only for sea or inland waterway transport．( )

[单项选择]Too much ______ to X-rays can cause skin burns, cancer or other damage to the body.
A. disclosure
B. exhibition
C. contact
D. exposure

[单项选择]The group of medications most often used in the treatment of schizophrenia is（　）
A. Antichoinergics
B. Phenothiazines
C. Thioxanthenes
D. Antidepressants

[单项选择]If your child only picks at his food, he can be trained to be a good eater.
That will happen only when you’ve changed some of your own habits. Your child only accidentally discovered that being a bad eater meant getting lots of rewards from you. But you, as a parent, can easily undo your child’s bad eating habits.
I recall the case of little Sally Sanders, aged three-and-a-half, who was angrily described by her mother as being, "the worst eater I’ve ever seen in my life! I can’t get her to eat anything. I’m afraid she’s going to grow up sick and weak, that’s how little she eats."
"What do you do when she won’t eat her food" I asked.
Her voice showing a very high state of pique, Mrs. Sanders continued resentfully, "Every time we have a meal, I wind up having a big fight with Sally. I scream and shout a lot at her. She makes me so mad when she won’t eat her food. I warn her she needs a good, well-balanced meal to grow up healthy. She’s just a stubborn child who won’t
A. has no taste for food.
B. eats bad food.
C. pay no attention to nutrition of food at all.
D. picks at the food and eats very little.

[单项选择]TV, if properly used, can （　） a child’s imagination.
A. arise
B. incite
C. invoke
D. stimulate

[单项选择]t_R
A. 峰面积
B. 峰高
C. 保留时间
D. 峰宽
E. 半高峰宽

[单项选择]TV, if properly used, can（　）a child’s imagination.
A. cause
B. excite
C. stimulate
D. arise

[单项选择]To whom can a personal compliment be used

[填空题]The drugs used to prevent migraines can block the______ effects , which may cause the blood vessels to expand.

[简答题]When used with care, transitional words can enhance writing, however, too many of them will soon weary your reader.

[多项选择]Textual connectives that can be used to signify adversative relations may include "______".
A. yet
B. because
C. instead
D. only

[填空题]Which can be used as emergency exit The right hand ______.