女子100米栏共有______个栏架,起跑点至第一栏13米。
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His formal style. of speaking was ________(appropriate) to the occasion and people laughed at him.
田径跳跃运动项目主要有助跑、_______、________和落地四个技术环节组成。
The directors were trying to get rid of her,but all the staff were ________(support) of her.