皮皮学，免费搜题
登录
搜题
【单选题】
放射免疫分析标准曲线的制作中，半对数坐标系制图法获得的标准曲线特点是（）A.
呈直线
B.
标准曲线呈“S”形
C.
呈弧线
D.
正相关直线
E.
负相关直线
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The margin of safety is:
A.
the excess of budgeted or actual sales over budgeted or actual variable expenses
B.
the excess of budgeted or actual sales over budgeted or actual fixed expenses.
C.
the excess of budgeted or actual sales over the break-even volume of sales.
D.
the excess of budgeted net operating income over actual net operating income.
【简答题】电流所做的功,简称 ,用字母 表示,单位是 ;电流在单位时间内所做的功,称为 ,用字母 表示,单位是 。
【简答题】There is some follow-up work after the import. The importer needs to handle verification of import ( ) after payment.
【简答题】已知大圆的半径为R，小圆的半径为r，圆环面积为S． （1）用代数式表示圆环的面积S； （2）当R=5，r=3时，求S（结果保留一位小数）．
【单选题】—After P.E., I often feel very thirsty. —Why not buy some ________ to drink?
A.
bread
B.
noodles
C.
apple juice
D.
teas
【单选题】The margin of safety is the difference between:
A.
budgeted expenses and breakeven expenses
B.
budgeted revenues and breakeven revenues
C.
actual operating income and budgeted operating income
D.
actual contribution margin and budgeted contribution margin
相关题目：