A.普通感冒通常不宜常規(guī)預(yù)防性應(yīng)用抗菌藥物 B.普通感冒通常不能常規(guī)預(yù)防性應(yīng)用抗菌藥物 C.普通感冒通常應(yīng)常規(guī)預(yù)防性應(yīng)用抗菌藥物
A.30min B.60min C.90min
A.2m B.1m C.1.5m