[简答]  二、听力理解：请听下面的对话，根据对话内容从A、B、C三个选项中选出一个最佳选项。Listentothedialogandchoosethebestanswertoeachquestion.  1.Whenwillthehealthcarelecturebeheld?  A.Nextmonth.B.Nextweek.C.Thisweekend.2.Howmanywaysarementionedtopublishthenewsaboutthelecture?  A.3.B.4.C.5.3.Whatistheadvantageofputtinginformationonline?  A.It'seasyandconvenient.B.It'scheaperandpractical.C.It'spersonalandinteractive.4.Whichwayisexpensiveinpublishinginformation?  A.Puttingthenewsonthewebsite.B.Printingsomeposters.C.Puttinganoticeonthebulletinboard.5.HaveMelindaandHelendecidedonhowtopublishthenewsoflecture?  A.Yes,theyhave.B.No,theyhaven't.C.Theycan'treachanagreement.