我国的植被类型主要有草原、_________、热带雨林、常绿阔叶林、____________、针叶林。
荒漠 落叶阔叶林
Water, _____ we cannot live, exists in the form of liquid, gas or solid.
A．from which
B．on which
C．by which
D．without which
病人肢体软弱无力，行动不灵而无痛者，属（）
A.痿病
B.痹病
C.痫病
D.虚风内动
E.小儿惊风
