金银花的适宜采收期为（）
A.花蕾期
B.落果期
C.霜降期
D.7月12日至30日
E.全年均可
参考答案：A
转委托
In ship construction，frame spacing is（）.
A.greater at the bow and stern
B.reduced at the bow and stern
C.uniform over the length of the vessel
D.uniform over the length of the vessel，with the exception of the machinery spaces，where it is reduced due to increased stresses
