叉车有哪些主要部件名称有哪些？

根据短文及首字母提示填入恰当的单词完成短文。

Dear Ted,    

       Thank you for your i  1    I can't v  2   you this week because I'm very busy. This afternoon I have to go to the c  3   with my brother. You know I like music very much. And on T  4  ，I have to help my brother with his c  5   because he isn't good at chemistry. On Wednesday, I'm having volleyball t  6   with my friends. And on Thursday evening,I have a piano l  7  . I have to help my mother b  8   my sister on Friday.    On w  9  , I'm going to Hong Kong for v  10  . Can you go to Hong Kong with me?

Write soon.

                                                                                                                                                    David

预测包括（）项目

A.销售预测

B.成本预测

C.利润预测

D.资金需要量预测

E.存货预测

（）是学前儿童主动地、能动地反映现实生活的游戏，它包括角色游戏、结构游戏、表演游戏等。

A.创造性游戏

B.有规则游戏

C.智力游戏

D.集体游戏

队列研究的基本原理是什么？

以下对间接抗球蛋白试验叙述不正确的是：（）

A.一种试管内红细胞凝集方法

B.主要检测ＩｇＭ抗体

C.是抗体测定最敏感的技术

D.可用于血型抗原鉴定

E.可用于血型抗体鉴定