短信回执的“()模式”,是指用户发送的每一条网内点对点短信都会收到回执。开通方式为:发送短信“()”到()。
参考答案:全开,QK,1065800710
81. In order to finish the work in time,they always worked far______ the night.
A.in
B.onto
C.at
D.into
一般在干燥的土壤中,最大埋深为______m。
A.7~8 B.5~6 C.6~7 D.4~5