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举一反三
【单选题】建筑安装工程中的半成品是指钢、( )和已加工成型好的钢筋、模板、砂浆、混凝土等。
A.
沥青浇捣、电管线敷设、混凝土
B.
木、陶瓷、混凝土构件制品
C.
电气设备安装、煤气管线敷设、通风管道安装
D.
电气线路、排水管线、采暖通风
【单选题】The Fisherman and the bearOne fine day, an old man was fishing and caught nothing. Finally, he gave up and walked back along the shore to his shack（窝棚）. When he got close to the front door, he saw it ...
A.
It held the paw out over the water.
B.
The bear jumped and ran out of the door.
C.
He walked to the door quietly and looked inside.
D.
The bear was gone and had left six large fish for him.
E.
The bear often came to the old man's shack to get honey.
F.
Every time a fish jumped after his paw the bear hit it ashore.