The best title for this passage might be ________.
A. Colds and Viruses B. Ways to Avoid Colds C. The Spread of Viruses D. Hand Contact and Transmission of Viruses
参考答案:
答案解析:
Man is most likely to be stricken with a cold if ________.
Man is most likely to be stricken with a cold if ________.A. he often rubs his e