颗粒在沉砂池中的沉淀属于()
A、自由沉淀
B、絮凝沉淀
C、拥挤沉淀
D、压缩沉淀
参考答案:A
Can you believe? To raise an adopted dog, a young Australian even stayed single, __________ possible relationships with female students on campus!
A.turning out
B.turning down
C.turning away
D.turning in
Dr. Peter Spence, ______headmaster of the school, told us , “______fifth of pupils here go on to study at Oxford and Cambridge.”
A.the ; The
B./ ; The
C./ ; A
D.a ; A