She doesn’t speak ____________her friend, but her written work is excellent.

A．as well as

B．so often as

C．so much as

D．as good as

甲从商店买钻戒一枚，经鉴定该钻戒上的钻石为人造钻石，与价格严重不符，甲因工作繁忙忘了此事。1年后，甲向商店请求赔偿，下列选项正确的是( )。

A．甲的请求权因时效已过不受法律保护

B．甲可主张撤销权，撤销权不因诉讼时效已过而无效

C．甲或向商店主张或向钻戒生产厂家主张权利均受法律保护

D．甲的请求权因时效已过而消灭