Tony Green has worked very hard to make his dream a(n) ( )_.
A. reality
B. really
C. real
D. realism
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( )my opinion,Will and Martha should have never gotten married.
A. To
B. Off
C. In
D. Up
Tom's dream is to become a doctor, and he is working very hard to turn his dream ( ) a reality.
A. into
B. in
C. with
D. out
发绀是由于血液中还原血红蛋白超过:( )
A. 3g/dl
B. 5g/dl
C. 8g/dl
D. 10g/dl
二氧化碳在血液中的主要运输形式是:( )
A. 物理溶解
B. 碳酸氢盐的形式
C. 氨基甲酸血红蛋白形式
D. 以上都不是