Every morning a client with type 1 diabetes receives 15 units of Humulin 70/30. What does this type of insulin contain

A. 70 units of NPH insulin and 30 units of regular insulin.
B. 70 units of regular insulin and 30 units of NPH insulin.
C. 70% NPH insulin and 30% regular insulin.
D. 70% regular insulin and 30% NPH insulin.

煤与瓦斯突出征兆有（）。

A、工作面顶板压力增大，煤壁被挤出、片帮掉渣、顶板下沉或底板鼓起

B、工作面风流中瓦斯忽大忽小，打钻时顶钻、卡钻、喷瓦斯等现象

C、煤层发出劈裂声、闷雷声、机枪声、响煤声．声音由远到近、由小到大，有短暂的、有连续的、间隔时间长短不一

D、煤壁发生震动或冲击，顶板来压、支架发出折裂声