A：which
B：from which
C：with which
D：without which
已知AB→=(4,1)，BC→=(-1,K)若A，B，C三点共线，则实数k的值为（ ）
下列关于人类对细菌、真菌的利用，错误的是（ ）
Miss Chen said Lao She was famous _______his play Teahouse.
