产品市场占有率与行业增长率都高，是( )业务的表现。
A．明星
B．金牛
C．瘦狗
D．问题
参考答案：A
In summer, people usually stay up late outside,______the cool air. [ ]
A. to enjoy
B. enjoying
C. enjoy
D. enjoyed
盾构中至少装有两种出碴系统是是（）盾构。
A.双护盾TBM
B.复合盾构
C.硬岩TBM
