问题
单项选择题
X62W铣床的主电路由电源总开关QS、熔断器FU1、()、热继电器FR1~FR3、电动机M1~M3、快速移动电磁铁YA等组成。
A、位置开关SQ1~SQ7
B、按钮SB1~SB6
C、接触器KM1~KM6
D、速度继电器KS
答案
参考答案:C
X62W铣床的主电路由电源总开关QS、熔断器FU1、()、热继电器FR1~FR3、电动机M1~M3、快速移动电磁铁YA等组成。
A、位置开关SQ1~SQ7
B、按钮SB1~SB6
C、接触器KM1~KM6
D、速度继电器KS
参考答案:C
完形填空。 | |||
Kate Smith is a student. She __1__ a brother and a sister. __2__ are Jack Smith and Jenny Smith. They all __3__ sports. Kate __4__ baseball. Jack likes soccer and Jenny likes ping-pong ball. Their mother gives (给) __5__ lots of food every day. | |||
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