采用（）制芯时，必须保持顶出机构有良好的密封性。
A.热芯盒
B.壳芯盒
C.冷芯盒
D.手工芯盒
参考答案：C
— Any advice about this trip?
— Well, no food is available on _____ island so make sure you bring _____ packed lunch and drink, as well as your camera and sunblock.
A．an, the
B．the; a
C．the; /
D．an; a
患者，男性，42岁。因足底被刺伤后出现全身肌肉强直性收缩，阵发性痉挛，诊断为破伤风冲洗此患者伤口所用的溶液是
A．2%碘酊B．3%双氧水C．生理盐水D．0.2%碘伏E．10%硝酸银溶液
