原始反射(primitivereflect)

第二节: 语法填空

Vitamins are a group of substances（物质）found in food. The body needs them for life and health. So usually, many people care for the question: am I getting enough vitamins, and am I getting the right kind?

Even though very small amounts of each vitamin are enough for the needs of the body, the worry people have about vitamins has some reasons. And this has to do with their ___11_      --- the food they take in. A person eating a good variety of food get all the vitamins now ___12   ___ (know) to be needed.

The problem is that there are many people who don’t ___13_   __ foods wisely. So the answer ___14   ___ this question is: No extra ___15_  __ are needed, ___16    __ you eat proper foods. In fact, many of the vitamins cannot be ___17_  __（store） in the body, so when extra vitamins are taken in, the body simply gets rid of them. It is even ___18   ___ (harm) to put too much of certain vitamins into the body. This has been found to be ___19        (truth) of vitamin A and D, when ___20    ___ amounts are taken in.

大家______为我担心，我会照顾好自己的。

A．不必

B．未必

C．不曾

D．决不

戏剧式结构讲究“（）、（）、（）、（）”，其中“（）”是指结局圆满。

磨床导轨和丝杠螺母怎样进行润滑

下面程序的功能是由随机函数产生100个在200～700之间的整数，然后找出最大者，并记下是第几个数，但程序不完整，请选择适当的内容在下划线处将程序补充完整。
Dim a(100)
For j=1 To 100
a(j)=Int(Rnd*501+200)：Print a(j)
Next j : Print
p=1 : max= ______
For j=2 To 100
If a(j)＞max Then max=a(j) : p=j
Next j
Print "The largest number is " ; max
Print "The position is"; p
End

A．0

B．a(1)

C．1.7E+38

D．1.7E-38