把萝卜条放入浓盐水中将会发生的变化是（ ）
A．细胞吸水，萝卜条变硬
B．细胞吸水，萝卜条变软
C．细胞失水，萝卜条变硬
D．细胞失水，萝卜条变软
答案：D
—How much do you know about the Youth Olympic Games to be held in Nanjing?
—Well, the media ________ it in a variety of forms.
A．cover
B．will cover
C．have covered
D．covered
大肠鳞癌的好发部位是()
A．肛门直肠
B．乙状结肠
C．升结肠
D．横结肠
E．降结肠
