内听动脉多发自()
A.基底动脉
B.小脑前下动脉
C.小脑后下动脉
D.椎动脉
E.小脑上动脉
参考答案:A
某基坑长30m,宽20m,场地中自0~15m为砂层,渗透系数为0.9m/d,地下水埋深为2.0m,要求基坑水位降至地表下7.0m,基坑远离地表水体及隔水边界,抽水井深15m,自2.0m以下为过滤器,据《建筑基坑支护技术规程》(JGJ120—99),该基坑涌水量为()m3/d。
A.200
B.245
C.300
D.345
Children who are over-protected by their parents may become ________.
A.hurt
B.spoiled
C.damaged
D.harmed