皮皮学，免费搜题
登录
搜题
【单选题】
在实施双通道制的海关现场,须办理纳税或海关批注验放手续的旅客,选择( )通关。A.
应税通道
B.
绿色通道
C.
无申报通道
D.
免税通道
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The burning of the fuel adds more heat to the air charge, causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?
A.
the burning
B.
the fuel
C.
the air charge
D.
the engine piston
【简答题】Heat causes the (expand) of gases.
【单选题】— How long do you want me to heat the oil? — Heat it till it _____ to smoke. [ ]
A.
would begin
B.
begins
C.
will begin
D.
began
【简答题】Metals expand with heat and contract with cold. contract:
【单选题】The ideal piston material would not ______. light and strong, conduct heat well, expand only slight when heated, resist wear, and be low in cost.
A.
be light and strong
B.
conduct heat well
C.
expand only slight when heated
D.
be high in cost
【单选题】All gases and most liquids and solids expand when ______ .
A.
heated
B.
heating
C.
being heating
D.
heat
相关题目：