当所测水样的pH>10时,应选择含锂的pH玻璃电极,以减小误差。
参考答案:对
下列国家中都属于地跨两大洲的国家是
A.俄罗斯和中国
B.土耳其和埃及
C.美国和加拿大
D.巴西和哈萨克斯坦
We were told that Sue would be ideal for the job, but she()badly when we talked to her.
A.came across
B.fell out
C.looked to
D.brought up