成品胶挥发份除受负荷影响外,主要受()、()、()等因素影响,
参考答案:五段温度;模头压力;热风温度
The World Health Organization gave a warning to the public without any _____ when the virus
of H1N1 hit Mexico in April, 2009. [ ]
A. delay
B. effort
C. schedule
D. consideration
在我国的省级行政区中,临海的有多少个?[ ]
A.11
B.12
C.13
D.14