A.應(yīng)當(dāng)輕聲細(xì)語(yǔ) B.應(yīng)當(dāng)高談闊論 C.應(yīng)當(dāng)談笑風(fēng)生
A.5% B.20% C.10%
A.60 B.90 C.120