嫁接成活的条件主要包括亲合力强、（）、温湿度适宜、形成层对准。
参考答案：物候期相同
You're still here. I _____ you've gone to England. [ ]
A. think
B. have thought
C. thought
D. would think
导游员职业等级标准中对中级导游员业绩要求的表述是：无服务质量方面的重大投诉，游客反映良好率不低于（）。
A.85%
B.90%
C.95%
D.98%
