OG12 33中怎么有两个has？

queenie924

Because an oversupply of computer chips has sent prices plunging, the manufacturer has announced that it will cut production by closing its factories for two days a month.

A.Because an oversupply of computer chips has sent prices plunging
B.Because of plunging prices for computer chips, which is due to an oversupply
C.Because computer chip prices have been sent plunging, which resulted from an oversupply
D.Due to plunging computer chip prices from an oversupply
E.Due to an oversupply, with the result that computer chip prices have been sent plunging

不明白A中有两个has还能成为正确选项，不知道该句要表达什么意思，怎么同时用2个现在完成时（has sent 和has announced），求解析。。

parispings

选错的最少的那个就是了 其他4个明显有大方向错误

queenie924

Because an oversupply of computer chips has sent prices plunging, the manufacturer has announced that it will cut production by closing its factories for two days a month.
我觉得announced前面那个has是多余的，用一般现在时也完全能够表达清楚意思的
我现在看见时态就有点害怕，分不清什么时候该用完成时，什么时候用一般过去式或现在式...纠结

queenie924

完成时是表示主从句动作发生有顺序性、时间性，而这个句子中主句和从句都用现在完成时，这样的话表明了什么顺序性呢

logowuyi

建议你去查语法书就知道了。没这种说法的。

queenie924

但是这样是想表达什么意思呢，我记得以前语法老师讲过现在完成时要对应一般现在时

啊，一般都是前面一个一般现在时，后面再有has done; 如果前面是一般过去式，后面就

用had done

logowuyi

为什么不能？呵呵。没有语法规定两个现在完成时不能在一句话里。