For the generator control panel onboard a ship with AC electrical power network, it has voltage meter, current meter, and ( ) also. A: frequency<br/>meter, power meter, and power factor meter B: frequency<br/>meter, power meter and mega ohm meter C: frequency<br/>meter, power meter and rotating speed meter D: frequency<br/>meter, mega ohm meter and rotating speed meter

What is the meter of a minuet? A: duple meter B: triple meter C: quadruple meter D: sextuple meter

Light meter has many types. Which one is Independent light meter? A: reflected light meter B: pointer light meter C: Digital LCD Light Meter D: incident light meter

(4). 要检验一个班级，在进行翻转教学后”概率统计“课程平均成绩是否有所提高，恰当的假设是（ ）。 A: \( H_0 :\mu =\mu _0 ,\quad H_1 :\mu =\mu _1 \) B: \( H_0 :\mu =\mu _0 ,\quad H_1 :\mu \ne \mu _0 \) C: \( H_0 :\mu =\mu _0 ,\quad H_1 :\mu &gt;\mu _0 \) D: \( H_0 :\mu =\mu _0 ,\quad H_1 :\mu

“Sonnet 18” is in _____. A: Spondaic meter B: Trochaic meter C: Iambic pentameter D: Anapestic meter

在以下情况中，实现了消费者均衡的是（） A: MU/P＞MU/P B: MU/P＜MU/P C: MU/P＝MU/P D: MU/P＝MU/P

计量资料配对t检验的无效假设（双侧检验）可写为（） A: μ=&mu; B: &mu;≠0 C: &mu;=&mu; D: &mu;≠&mu; E: &mu;=0

This doll is<br/>about ______high. A: a half meter B: half a meter C: half meters D: half meter

(2). 根据题意，应提出假设（ ）。 A: \( H_0 :\mu \le 70,H_1 :\mu &gt;70 \) B: \( H_0 :\mu \ge 70,H_1 :\mu &lt; 70 \) C: \( H_0 :\mu =70,H_1 :\mu \ne 70 \) D: \( H_0 :\mu \ne 70,\;\;H_1 :\mu =70 \)

Meter