为明确诊断，首先宜进行
A．血钙、磷测定B．大便镜检+培养C．脑电图检查D．脑脊液检查+培养E．血培养+药敏
参考答案：D
They still can’t decide ________ with our difficulties in learning math.
A．what to deal
B．how to do
C．what to solve
D．how to deal
环形交叉口的总通行能力一般可达到( )辆/h。
A．1200B．1500C．1800D．2000
