放样点的平面位置时，至少应有（）个以上能通视的控制点。
A.1
B.2
C.3
D.4
参考答案：B
被喻为中国鸽子树，又是植物界“活化石”的珍贵树种是（ ）
A．银杉
B．金钱松
C．银杏
D．珙桐
________ the famous actress wants to offer to her fans is honesty and happiness.
A．Which
B．What
C．That
D．Whom
