下列物质可直接向下水道排放（）
A.水洗污水
B.碱渣
C.碱液
参考答案：A
6，9，10，14，17，21，27，( )
A．28
B．29
C．30
D．31
—Poppy, with Eddie and Hobo, _____ a movie after dinner every evening.
—How interested they are in it! [ ]
A. watches
B. watch
C. are watching
D. is watching
