测量系统图中,所用下列文字符号各表示是什么取源测量点?⑴PE⑵FE⑶LE⑷TE⑸AE
参考答案:
⑴PE—压力
⑵FE—流量
⑶LE—液位
⑷TE—温度
⑸AE—分析
28.Kids are often told to remain ______ they are and wait for their parents if they get lost.
A.what
B.where
C.how
D.Who
“刻舟求剑”是由于楚人不懂 ______所致的.