A.’38485 B.”38485 C.38485’ D.38485
A.百分比優(yōu)先于乘方 B.乘和除優(yōu)先于加和減 C.字符串連接優(yōu)先于關(guān)系運(yùn)算 D.乘方優(yōu)先于負(fù)號(hào)
A.邏輯值的與運(yùn)算B.子字符串的比較運(yùn)算C.數(shù)值型數(shù)據(jù)的相加D.字符型數(shù)據(jù)的連接