Fill in the blank. 1931 sukaan. 設計師把天氣瓶的慨念，把密封的玻璃裝入數種化學物質混合成溶液，隨著不同溫度及天氣變化而改變結晶體的形狀，並將設計成不同款式的 ... ... <看更多>

A Fill in the Blank question consists of a phrase, sentence, or paragraph with a blank space where a student provides the missing word or ... ... <看更多>

Leave blank to manually manage the updates. desc : str, optional ... If unspecified or False, use unicode (smooth blocks) to fill the meter. ... <看更多>