针叶材的管胞含量约占木质部总容积的().
参考答案:90-95%
Eyes ________, I see the moon so bright; Head ________, in homesickness I am drowned.
A.raised; bending
B.raised; bent
C.raising; bending
D.raising; bent
“八百里秦川”是指[ ]
A、宁夏平原
B、河套平原
C、成都平原
D、渭河平原