两直线平行,其三面投影一定平行;两直线(),其三面投影必然相交,并且交点为两直线的共有点;既不平行,又不相交的两直线,一定()。
参考答案:相交;交叉
—Go and ask her come .
—OK.
A.what time would she like to
B.at what time she’d like to
C.when would she like to
D.when she likes to
简述我国《野生植物保护条例》有关野生植物生长环境保护措施的规定。