【单选题】关于皮肤清洁的说法,错误的是
A.
适宜的磨砂膏使用次数为油性皮肤每两周使用一次
B.
如果对正在使用的洗面奶感觉良好则不需要经常更换
【单选题】Of the three resistors used in the trials,which would be considered an ohmic shows that resistor B is not an ohmic device but not a thermistor?
D.
Resistor A and Resistor B only
【单选题】The largest share of current goes through which resistor in parrallel resistors?
C.
each resistors have the same cuttrent
【单选题】下列关于心源性水肿患者皮肤护理措施不妥的是
B.
需要使用热水袋取暖时,水温应以50~55℃为宜
【判断题】东北梅花鹿是目前我国人工驯养的最优秀的茸鹿,宜推广大规模饲养。
【单选题】Given a series circuit containing resistors of different values, which statement is not true?
A.
The total resistance is the sum of the value of the resistors
B.
The sum of the voltage drops across each resistive element will be equal to the source voltage
C.
The current through each resistor is the same
D.
The voltage drop across each resistor will be the same
【多选题】皮肤为什么需要清洁?
B.
清除各种物理性粉尘、化学刺激物、致敏物和微生物