光缆传输性能代号为:20408,则其平均传输损耗不大于()。
A.4dB/km
B.0.4dB/km
C.0.04dB/km
D.40dB/km
参考答案:B
The girl seriously injured in the Wenchuan earthquake was so well taken care of in the hospital that she could ____ get out of bed without help.
A.nearly
B.hardly
C.merely
D.barely
中度敌百虫中毒患者,下列哪项不正确
A.立即静注阿托品
B.立即用2%NaHCO3水10000ml彻底洗胃
C.及早用阿托品和双复磷
D.根据病情和治疗反应调整药物剂量
E.缓解后观察3~5天,注意病情变化