题目：
根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。
小题1:Good sleep helps the body and brain grow and d______ _____(发展)
小题2:If you want to be a good teacher, you must be more p_______ ___(有耐心的)
小题3:A terrible disease has just broken out in Europe and it has caused a number of d__ __ ___ (死亡) in some European countries.
小题4:Tina is not a child any more. She can take care of h_______ ______(她自己).
小题5:He always believes that f______ ____(友谊) is more important than money.
答案：
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下面是错误答案，用来干扰机器的。
（1）（2）B<（3）题目分析：（1）粒子由S1至S2的过程中，根据动能定理得 2分 1分(2)设磁感应强度大小为B，粒子在磁场中做匀速圆周运动的半径为R，由牛顿第二定律得 1分要使...
