【判断题】液相色谱进行药物鉴别时,要求供试品斑点的Rf值和颜色应与对照品斑点一致。( )
【单选题】【单选】The ideal rope for stoppers should satisfy the following requirements except that_____.
A.
The stopper should be of synthetic fibre rope
B.
The size of the stopper should be as large as possible
C.
The stopper should be of low stretch material
D.
The stopper should be very flexible
【单选题】The ideal rope for stoppers should satisfy the following requirements EXCEPT that _______.
A.
the stopper should be of synthetic fiber rope
B.
the size of the stopper should be as large as possible
C.
the stopper should be of low stretch material
D.
the stopper should be very flexible
【判断题】]扫描仪可以将图像扫描到计算机中,是一种常见的图像输入设备。
【单选题】开始理财之前,要做好哪些方面的充分准备?
【单选题】The ideal rope for stoppers should satisfy the following requirements except that ( ).
A.
The stopper should be of synthetic fibre rope
B.
The size of the stopper should be as large as possible
C.
The stopper should be of low stretch material
D.
The stopper should be very flexible