There is a deadlock(僵局) in the discussion when neither side gives ________ to the other.
A. a way
B. way
C. the way
D. its way
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质数和奇数两个概念是()
A. 同一关系
B. 并列关系
C. 矛盾关系
D. 交叉关系
“空间与图形”的教学,目的在于培养学生的()
A. 数感
B. 计算能力
C. 空间观念
D. 统计观念
Johnson was ________ unknown before running for the presidency.
A. visibly
B. visually
C. vertically
D. virtually
―________ fine day it is today!
A. How, such
B. What a, very
C. How, so
D. What a, so