下列现象或事件属于自然灾害的是
①喜马拉雅山无人区的雪崩 ②印度洋地震海啸 ③大兴安岭的森林火灾 ④城市火灾[ ]
A.①②
B.②③
C.③④
D.①④
答案:B
. I suggest you buy this one . It is ________ more expensive but it can be used for a longer time .
A.approximately
B.slightly
C.finally
D.fortunately
位于双足足背沿第4跖骨与第5跖骨之间延伸到骰骨的一带状区域的反射区是( )。
A.肩关节
B.肩胛骨
C.膝关节
D.肘关节