湿热阻胃证痞满的特点是
A.四七汤B.柴胡疏肝散C.理中汤D.附子理中汤E.补中益气汤
参考答案:D
Don't go onto the thin ice, _____ you'll fall into the river. [ ]
A. but
B. or
C. and
D. so
Both bus and tree topologies are characterized by the use of multipoint (1).For the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the(3). A transmission from any station propagates the length of the medium in both directions and can be received by all other (4). At each end of the bus is a (5) , which absorbs any signal, removing it from the bus.
空白(1)处应选择()
A.medium
B.connection
C.token
D.resource