生理性带下的特点是()
A.赤白相兼
B.无色无臭,粘而不稠
C.清稀如水,淋漓不断
D.色白、质稀、无臭,绵绵不断
E.量少、色黄或赤白相兼、质稠
参考答案:B
These machines can help recycle the waste which would ______be thrown away.
A.otherwise
B.therefore
C.however
D.though