After the new technique was introduced, the factory produced()tractors in 1998 than the year before.
A. as twice many
B. as many twice
C. twice as many
D. twice many as
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正常胸部可听到支气管呼吸音的部位是
A. 正常肺组织
B. 胸骨角附近
C. 肩胛区
D. 胸骨上窝
E. 右肺尖
下列关于价值工程的含义描述不正确的是()。
A. 价值工程的性质属于一种“思想方法和管理技术”
B. 价值工程的核心内容是对“功能与成本进行系统分析”和“不断创新”
C. 价值工程的目的旨在提高产品的“功能”
D. 价值工程通常是在某个领域协作而开展的活动
We took delivery of the five cartons, and got the () examined.
A. content
B. contentment
C. contents
D. containment
表面活性剂可以作为微丸的吸湿剂是哪个
A. 十二烷基硫酸钠
B. 硬脂酸钠
C. 卵磷脂
D. 阳离子型表面活性剂:苯扎氯胺
E. 吐温