(23-1)(23+1)(26+1)(212+1)=
A. (224-1)
B. (224-1)
C. (248-1)
D. (296+1)
E. 26(212-1)
查看答案
【C20】
A. suspicion
B. suspect
C. suspicious
D. suspected
【C16】
A. east
B. the east
C. at east
D. eastern
【C17】
A. international
B. local
C. nation
D. national
【C9】
A. rushed
B. ploughed
C. headed
D. crushed