旅游资源的本质特征是对游客具有吸引力。一般认为，旅游资源吸引力的大小表现为在一定时期内所接待的游客人次的多少。( )
参考答案：对
(2013·辽宁师范大学附中模拟)Fortunately it happened at night. If the hurricane ________ during the daytime, there ________ more deaths.
A．had happened; would have been
B．happened; would be
C．had happened; would be
D．happened; would have been
简述学习方法指导的基本要求.
