问题
选择题
221. There are 5 ________ in the passage about nanometer(纳米) technology we have just read. Please tell me the general meaning of the first one.
A.persons
B.paragraphs
C.articles
D.Units
答案
B
221. There are 5 ________ in the passage about nanometer(纳米) technology we have just read. Please tell me the general meaning of the first one.
A.persons
B.paragraphs
C.articles
D.Units
B