选择题：4【判断题】It is more difficult to popularize education

在豆科植物成熟种子中，（ ）是贮藏营养物质的场所。选择一项：A. 外胚乳B. 胚根C. 子叶D. 胚乳

【单选题】在C语言中，下列说明正确的是______。A、do-while构成的循环，当while中的表达式值为零时结束循环B、do-while构成的循环必须用b

3【判断题】The chairperson condute the hearing it can also refer to the actions.我的答案：

3【单选题】You should avoid being late for _class.A、yourB、youC、yourthD、his

3【判断题】He gets extraragent praise of us.我的答案：√