In order to ______ the disease, the first thing we should do is to do research about it and find out a satisfactory cure.

[单选题]The FIRST thing to do to ensure that a refrigeration unit will not start while undergoing repairs, is to _____.A．secure and tag the electrical circuitB．place a crow bar in the flywheel of the unitC．inform. all persons in the area not to start the uni

[单选题]What did the scientists do to find out if the e-nose worked?A． They presented it with all common crops..B． They fixed 13 sensors inside the device.C． They collected different damaged leaves.D． They made tests on damaged and healthy leaves.

[单选题]---What should I do first before boarding? ----().A．You may ask the policeman there to help.B．Please go to the airline counter to check-in for your flight.C．You should wait and see.D．You have to go there to check in for your flight.

[单选题]What do we know about the girl?A．She is new to the school,B．She writes for the school newspaper.C．She seldom asks questions in class.

[单选题]What do we know about the girl? （ ）A．She is new to the school．B．She writes for the school newspaper．C．She seldom asks questions in class．

[单选题]What do we know about the girl?A．She is new to the school.B．She writes for school newspaper.C．She seldom asks questions in class.

[单选题]what do we know about nora?A．she prefer a room of her own.B．She likes to work with other girls.C．She lives near the city center.

[单选题]What do we know about Olivetti ?A．It produced the best typewriter in the word.B．It designed the word’s first mainframe. computer.C．It exported more typewriter than other computer.D．It has five independent companies with its head office in lvrea.

[单选题]What do we know about Olivetti ?A．It produced the best typewriter in the word.B．It designed the word’s first mainframe. computer.C．It exported more typewriter than other computer.D．It has five independent companies with its head office in lvrea.

[单选题]What do we know about the girl?A．She is new to she school.B．She wriers for the school newspaper.C．She seldom asks questions in class.