E refers to economic factors in the PEST analysis. Economic factors include()
A. Recession;
B. GDP growth rate;
C. Interest rate;
D. Exchange rate;
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什么是体育()
A. 是一种简单的社会文化现象
B. 它不以身体与智力活动为基本手段
C. 有意识、有目的、有组织的社会活动
D. physical education,缩写 P&E 或 P.E
“双键”的英语词汇是_()
A. a double bond
B. a single bond
C. a triple bond
D. nitrogen fixation
“固氮作用”的英语词汇是______()
A. nitrogen fixation
B. free oxygen
C. by-product
D. the amount of proteins
“副产品”的英语词汇是______()
A. by-product
B. nitrogen fixation
C. the amount of proteins
D. free oxygen