呕吐伴眩晕、眼球震颤,应考虑()。
A.急性胃肠炎
B.脑炎
C.前庭器官疾病
D.肾绞痛
E.脑出血
参考答案:C
____ kilograms of recycled paper saves 15 trees. [ ]
A. Thousands of
B. Thousand
C. Three thousands
D. Thousands
室外消火栓应沿道路设置,当道路宽度大于()时,宜在道路两边设置消火栓,并宜靠近十字路口。
A.15m
B.30m
C.45m
D.60m