下列各项中加点字注音全都正确的一项是

A．铿锵(qiāng)蹒(pán)跚砂砾(Iì)齑(jī)粉

B．绯(fěi)红婀娜(nu6)澎湃(pà1)烙(1ào)印

C．瘠(jí)薄缱绻(quǎn)馨(qīn)香窒(zhì)息

D．婆娑(suō)干瘪(biē)驳(b6)船纤(q1àn)绳

. With the introduction of the computer, there is no complicated problem ________ can be solved in a few hours.

A．as

B．which

C．that

D．but