钢板桩的打设宜采用（）。 [" 轻锤高击"," 重锤轻击"," 重锤低击"," 轻锤重击"]
道路旅客运输驾驶员应当在发车30min前备齐相关证件进站等待发车，不得（）。 ["误班","脱班","停班","倒班"]
我国的根本政治制度是（）。 ["A.政治协商制度","B.人民民主专政制度","C.人民代表大会制度","D.民主集中制"]
Which three statements are typical characteristics of VLAN arrangements?（） ["A new switch has no VLANs configured.","Connectivity between VLANs requires a Layer 3 device.","VLANs typically decrease the number of collision domains.","Each VLAN uses a separate address space.","A switch maintains a separate bridging table for each VLAN.","VLANs cannot span multiple switches."]
蚜虫生长的适宜温度条件是（） ["10~18℃","15~22℃","18~25℃","12~20℃"]
幼儿园幼儿喝水环节应注意哪些事项？
