支架、模板是钢筋混凝土桥梁施工的基本设备，它们的主要作用是（）
A.钻孔和打桩
B.起吊和搬运
C.浇筑和养护
D.支撑和定型
参考答案：D
原发性蛛网膜囊肿好发于：（）
A.侧裂池
B.大脑半球凸面
C.鞍上池
D.脑室内
E.枕大池
The following information is extracted from a financial statement: Net income $1000 Decrease m accounts receivable 120 Increase In inventory 40 Increase in accounts payable 20 Decrease in wages payable10 Increase in deferred taxes40 Depreciation 100 Profit from the sale of fixed assets 10 Dividends paid out80 Cash flow from operations is:
A．
B．
C．
