如圖所示為電場(chǎng)中的一條電場(chǎng)線,則下列說(shuō)法正確的是(          )                               

                                                                                     

    A.  這個(gè)電場(chǎng)一定是勻強(qiáng)電場(chǎng)

    B.  A、B兩點(diǎn)的場(chǎng)強(qiáng)有可能相等

    C.  A點(diǎn)的場(chǎng)強(qiáng)一定大于B點(diǎn)的場(chǎng)強(qiáng)

    D.  A點(diǎn)的場(chǎng)強(qiáng)一定小于B點(diǎn)的場(chǎng)強(qiáng)

                                                                                                                                     

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