单选题 The wearable smart mask can detect common viruses in the air, and then ________ the wearers via their mobile devices.

单选题 Listening to music can help to reduce stress and ease ________.

单选题 Galleries, art museums, and other ________ attractions are now available in the city.

单选题 The local government will continue to implement a variety of ________ to promote fair competition.

单选题 She decided to break the ________ of getting up late so that she could get more done in the morning.

单选题 In my view, we should avoid ( )behavior under any circumstances.

单选题 A national smart platform launched on Monday will provide users with a wide ________ of courses and education services.

单选题 Before making new plans, you should ________ your advantages and disadvantages.

单选题 ________ in China over thousands of years ago, green tea is one of the oldest drinks in the world.