写出下列词语和句子的意思。

1．使弈秋诲二人弈。

使：                  诲：                         弈：                  

整句的意思是：                                                                                                            

2．我以日始出时去人近。  

以：                     始：                         去：                          

整句的意思是：                                                                                                             

3．孰为汝多知平？  

孰：                                汝：                          整：                                    

句的意思是：                                                                                                                 

4．为是其智弗若与？  

为：                                其：                                      

弗：                                与：                                 

整句的意思是：                                                                                                                 

下列蔬菜中需要含钾无机盐较多的是 [ ]

A．白菜

B．番茄

C．马铃薯

D．芹菜