皮皮学，免费搜题
登录
搜题
【简答题】
促销组合的谱系包括：______、______、______、______。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The higher the cetane number, _____ the ignition quality of the fuel.
A.
the worse
B.
the better
C.
the smaller
D.
the greater
【单选题】With economy increasing steadily, people ______ enjoy a life of higher quality.
A.
should
B.
can
C.
may
D.
must
【单选题】Fuels of high quality with their earlier ignitions will cause higher _____ pressure in cylinders of a diesel engine.
A.
compression
B.
maximum
C.
rated
D.
oil
【单选题】In author's opinion, the sudden appearance of higher-quality goods suggests its officials ______.
A.
become more concerned about the quality and domestic market
B.
turn to other ways to stimulate and enforce export rules
C.
have to improve goods' quality for the qualification of exports
D.
want consumers to buy better products at low prices
相关题目：