The sense of relationship between "John plays the piano" and "John plays an instrument" is _________.
A. synonymy
B. antonymy
C. entailment
D. contradition
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Dialectal synonymy, stylistic synonymy, and relational synonymy are the three categories of synonyms in English.
A. 对
B. 错
"Wide and narrow" is an example of gradable antonyms.
A. 对
B. 错
两被花是指具有花萼和( )的花。
A. 雄蕊
B. 雌蕊
C. 花冠
D. 花蕊
一朵花中具有雄蕊和雌蕊称为( )。
A. 两被花
B. 单被花
C. 单性花
D. 两性花