不定项选择
A．正确
B．错误
A．正确
B．错误
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单项选择题
一个力沿两个互相垂直的轴线的分力与该力在该两轴上的投影之间的关系是
一个力沿两个互相垂直的轴线的分力与该力在该两轴上的投影之间的关系是
A．两个分力的大小分别等于其在相应轴上的投影的绝对值；
B．两个分力的大小分别等于其在相应轴上的投影
C．两个分力分别等于其在相应轴上的投影
D．两个分力的大小不可能等于其在相应轴上的投影的绝对值；
单项选择题
The following information relates to Eva Co's sales tax for the month of March 20X3：
4,540 at the beginning of the month and a closing debit balance of $2,720 at the end of the month.
What was the total sales tax paid to regulatory authorities during the month of March 20X3?
The following information relates to Eva Co's sales tax for the month of March 20X3：
What was the total sales tax paid to regulatory authorities during the month of March 20X3?
A．$6,470.00
B．$11,910.00
C．$14,047.50
D．$13,162.17