叶片呈披针形,基部耳状偏斜,不对称,孢子囊群在下表面侧脉间多见的药材是()
A.有柄石韦
B.石韦
C.庐山石韦
D.大青叶
E.枇杷叶
参考答案:C
______ I believe , and you will find Tom is very outgoing.
A.Having a talk with the student
B.One talk with the student
C.Given a talk with the student
D.If you have a talk with the student
如图,水平导线中有电流I通过,导线正下方的电子初速度的方向与电流I的方向相同,则电子将 ( )
A.沿路径a运动,轨迹是圆
B.沿路径a运动,轨迹半径越来越大
C.沿路径a运动,轨迹半径越来越小
D.沿路径b运动,轨迹半径越来越小