推进器的遥控地点允许相互连接，每个控制地点应能够指示哪个控制点正在控制机器，在同一时间只能在()对推进器进行控制。
B
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Johnhardlyspeakstoanybodyintheclass,________________?
Thisisourbestprice,____whichwehaveconcludedmanyorderswithotherbuyersinyourcity.()
翻译：WewishtocallyourattentiontothevalidityoftheL/C,sincethereisnopossibilityofL/Cextension.
Willyousendus_____returnmailpamphletsandpricelist____yourexports?
________inthought,healmostranintothecarinfrontofhim.