【简答题】IV. Choose a word or phrase that best completes each of the following sentences.
【单选题】IV. Choose the word or phrase that can replace the underlined part in each sentence without changing its original meaning. 1. They sent out more than 30 invitations to the seminar, but only twenty peo...
【单选题】IV. Choose the word or phrase that can replace the underlined part in each sentence without changing its original meaning. He had drunk too much, and his body swayed as he walked.
【单选题】IV. Choose the word or phrase that can replace the underlined part in each sentence without changing its original meaning. 1. He had drunk too much, and his body swayed as he walked.
【单选题】IV. Choose the word or phrase that can replace the underlined part in each sentence without changing its original meaning. 1.
【简答题】关于物质的量的描述正确的是( ) A.物质的量常用符号N表示 B.摩尔是7个基本物理量之一 C.1mol硫酸中约含有6.02×10 23 个硫原子 D.像米粒这样细小的物体可以方便地用摩尔进行计量