真核基因多数是断裂基因( )。 A．反映了真核生物的mRNA是多顺反子 B．因为编码

请仔细阅读题中的学生情况说明，从A—F中选出能解决他们问题的恰当建议。(有一项多余)
A. Emily often feels tired and seems to be lack of energy.
B. Jeff spent his summer vacation on the beach and got serious sunburnt.
C. Kate has poor eyesight and she can’t see clearly at night.
D. Tony sometimes feels pains in his bones and he has loose teeth.
E. Luke is so careless that he often gets hurt. And it takes a long time for his wound to heal.
F. Linda feel nervous before the new people.

	小题1:Vitamin A What can high-vitamin A foods do for you? be great for night vision help you see in color help your grow properly and aids in healthy skin ﹡ vitamin A in carrots helps you see at night
	小题2:The B vitamins What can the B vitamin do for you? help make energy and set it free help make red blood cells which carry oxygen(氧气) throughout your body ﹡ The B vitamins in leafy green vegetables help your body make protein(蛋白质)and energy.
	小题3:Vitamin C What can vitamin C do for you? keep body tissues(组织) in good shape help you heal when you get hurt help your body resist infection ﹡ Vitamin C in oranges helps your body heal if you get a cut
	小题4:Vitamin D What can vitamin D do for you? help keep your bones strong and healthy help keep your teeth strong and healthy help your body absorb the amount of calcium(钙) ﹡ Vitamin D in milk helps your bones and teeth.
"	小题5:Vitamin E What can vitamin E do for you? protect your skin from ultraviolet(紫外线) light protect you lungs from becoming damaged by polluted air help make red blood cells ﹡ Sunflowers seeds are the richest in Vitamin E