【单选题】溶液颜色检查中,若要配制黄色原液、则需选用哪一种试制( )
【单选题】溶液颜色检查中,若要配制黄色原液,则需用哪一种试剂()
【单选题】He _____ articles for our wall-newspaper these three years, and he _____ about forty articles.
A.
has been writing; has written
B.
has been writing; wrote
C.
is writing; has been writing
D.
has written; has written
【单选题】溶液颜色检查中,若要配制黄色原液则需选用哪种试剂
【单选题】溶液颜色检查中,若要配制黄色原液则需选用哪一种试剂
【多选题】What articles should we cite?
A.
Articles help you to define your topic and help readers to understand the knowledge gaps.
B.
Prior publications contain details of method.
C.
Articles contain unpublished data and personal communications.
D.
Articles support and interpret your results.
【单选题】手工会计和电算化会计具有很多区别,但()不应该不同。
【判断题】絮凝( flocculation )是指完成凝聚的胶体在一定的外力扰动下相互碰撞、聚集,以形成较大絮状颗粒的过程
【单选题】手工会计和电算化会计具有很多区别,但是下列说法()是不正确的。