If Finn was 18 months old one year ago, how old was he, in months, x months ago ？（）
A: x-30
B: x-12
C: 18-x
D: 24-x
E: 30-x
A: x-30
B: x-12
C: 18-x
D: 24-x
E: 30-x
举一反三
- How old was the baby? A: 15 months B: 16 months C: one year old D: one year and a half old
- When was the woman hired A: One week ago B: Two weeks ago C: Two months ago D: Six months ago
- 已知x = 5，那么执行语句x *= 6之后，x的值为（） A: 18 B: 6 C: 30 D: 24
- _____ months are there in a year? A: How old B: How much C: How many D: How often
- X为随机变量，E（X）=-1，D（X）=3，则E{3（X^2）+20}=（）？ A: 18 B: 9 C: 30 D: 32