（）联合收割机不是按动力配套方式分类的。
A、牵引式
B、自走式
C、半喂入式
D、悬挂式
参考答案：C
_______ that Marie was able to set up new branches elsewhere．[ ]
A．So successful her business was
B．So successful was her business
C．Such successful business she had
D．So successful business had she
反应热是（ ）
A．燃烧热的集中表现
B．中和热的集中表现
C．溶解热的集中表现
D．键能变化的集中表现
