输气量与被测量是线性的模拟仪表,仪表的刻度是()的.
A.均匀
B.前密后稀
C.前稀后密
D.不确定
参考答案:A
With the launch of the Shenzhou VII spaceship last week, more and more Chinese people __________ of one day living on the moon.
A.have dreamed
B.dream
C.are dreaming
D.are dreamed
课堂观察的方法可大体分为划记法和描述法两种。