【单选题】瓢虫,蚜虫,蔷薇花丛,小鸟这些动物之间可以组成一条食物链,它们的食物链排列应该是( )
【单选题】My mother ______ a farmer. Now she’s an office worker.
【单选题】I have two cousins. One is a farmer and _____ is a worker. [ ]
【判断题】定时器定时时间长短取决于定时分辨率。( )
【单选题】Who are talking?
A.
A teacher and a student.
B.
A farmer and a worker.
C.
A doctor and a patient(病人).
【判断题】中国历史上第一部具有资产阶级共和国宪法性质的法典是《中华民国临时约法》。()
【判断题】《临时约法》是一部具有资产阶级共和国宪法性质的法典。
【单选题】He isn’t a farmer and a worker.