A:CO2能使干燥石蕊纸花变红
B:CO2 能使澄清石灰水变浑浊
C:“低碳”是指CO2的排放量较低
D:CO2常用于灭火
— Can Jane and Jill swim?
— No, they .
已知:如图,在△ABC中,AB=AD=DC,∠BAD=30°;试求∠B和∠C的度数.
—Is she eating dinner?
—_________