A、will be started
B、will be starting
C、will have started
D、will have been started
我们从特供商场购买食品，并加强对所购食品的检查A.We’ll buy all the food from supermarket and check all the food we buy carefullyB.We’ll buy all the food from foreign countries and check all the food we buy carefullyC.We’ll import all the food and check all the food we buy carefullyD.We’ll buy all the food from exclusive shops and check all the food we buy carefully
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The problem is so serious that the situation is out of control.A.We’ve got to set up a police line and ask for aidB.We’ve got to ask for back-up from the PLA and policeC.We’ve got to report to the superiors rapidly and ask for back-upD.We have informed the authorities to take precautionary measures.
PLC输出器件从ON到OFF或从OFF到ON转变的时间称为()
____ were all very tired, but none of ____ would stop to take a rest.A、We ; usB、Us ; weC、We ; ourD、We ; we
The word "off-limit" in the passage may meanA.off-setB.off-stateC.within limitsD.beyond the limit
接75欧姆同轴电缆时,CMPT拨码开关SW1如何设置:1／2／3／4=()。A.ON/ON/ON/ONB.ON/OFF/ON/OFFC.OFF/ON/OFF/OND.OFF/OFF/OFF/OFF
同轴电缆,Rx外皮不接地,CMPT拨码开关SW2如何设置:1／2／3／4=()。A.ON/ON/ON/ONB.ON/OFF/ON/OFFC.OFF/ON/OFF/OND.OFF/OFF/OFF/OFF
