You stand on a spring scale on the floor of an elevator . Of the following, the scale shows the minimum reading when the elevator： (The magnitude of acceleration is same.) A: moves upward with increasing speed B: moves upward with decreasing speed C: remains stationary D: moves downward with decreasing speed

How many words do you have to write for IELTS academic writing task 2（ ）? A: a minimum of 150 words B: a minimum of 300 words C: a minimum of 200 words D: a minimum of 250 words

the minimum wage

It is a valuable ( scale / skill ). A: scale B: skill

中国大学MOOC: Chinese musical scale is a ____scale

The function [img=305x71]1803474bb1a60f1.png[/img]has ( ) A: A. neither a local maximum nor a local minimum B: B. a local maximum C: C. a local minimum D: D. a local maximum and a local minimum

What is the minimum entrance ____________ for this course?

Arithmetic operations are appropriate for A: only the ratio scale B: only the interval scale C: the nominal scale D: None of the above answers is correct.

scale

Identify the scale used for the following variable:Educational level reported as middle school, high school , undergraduate and higher _________ A: Nominal scale B: Ordinal scale