不能单独形成玻璃,但能改变网络结构,处于网络外的氧化物(即网络改变体或网络修饰体),其单元键强度为()
A. <250kJ/mol
B. >335kJ/mol
C.250~335kJ/mol
D. 没有确定
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Word中正确删除引用文献的方法有()
A. 在word中通过delete删除文献
B. 在word中通过edit & manage citacations删除文献
C. 在Endnote中通过delete删除文献
D. 在Endnote中通过cut删除文献
Which one of these is NOT included in the three typical structures of news articles()
A. Balanced form
B. Hourglass form
C. Inverted pyramid form
D. Pyramid form
Which one of these is the first American newspaper()
A. The Boston News-Letter
B. Publick Occurrences-Both Forreign and Domestick
C. The Sun
D. The New York Times
疟疾病人常见的热型是()
A. intermittent fever
B. Remittent fever
Constant fever
D. irregular fever
E. mild fever