包装药品的灭菌
A．干热灭菌B．湿热灭菌C．滤过除菌D．紫外灭菌E．辐射灭菌
参考答案：E
解析：掌握物理灭菌的方法及其应用。
已知等差数列{an}和等比数列{bn}满足：a1+b1=3，a2+b2=7，a3+b3=15，a4+b4=35，则a5+b5=______．
When you go outing with the children, you must see to ______that they are safe.
A．them
B．everything
C．it
D．yourself
