问题
填空题
电感式液位计的原理是由于液位的改变引起()电感量的变化,或者引起两个或几个线圈间相互感应,使二次线圈产生()的变化,通过测量电感量或感应电流的变化来测量液位的变化。
答案
参考答案:线圈;感应电流
电感式液位计的原理是由于液位的改变引起()电感量的变化,或者引起两个或几个线圈间相互感应,使二次线圈产生()的变化,通过测量电感量或感应电流的变化来测量液位的变化。
参考答案:线圈;感应电流
Passage Four
Why did IBM decide to sell its PC business
A.Because IBM has been brewing this sale for about 10 years.
B.Because IBM is going to produce mobile phones that have access to the Internet.
C.Because IBM can enlarge its PC sales with this merger.
D.Because IBM no longer enjoys any edges in PC making.