Pine trees are usually believed to _______ cold weather.
D
暂无解析
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
Theengineersinthislabspentseveralweeks_______theirplansforthenewbicycle.
Muchofthenewsprovidedbythisnewspaperis_______,notforeign.
Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.