单选题 The _______ white blood cell count indicated the infection of the incision.

单选题 The _________ of congenital heart disease with infant has been decreased due to the early detection by ultrasound(超声).

单选题 Condoms (避孕套) are an_______ method of birth control if used with care.

单选题 The patient’s indwelling catheter was blocked by blood clot and doctor use normal saline (生理盐水)to_______ the catheter.

单选题 Which term is different with other terms?

单选题 There are over 200 viruses responsible for the common cold. Here are the _______ periods for a few of the most common according to the Centers for Disease Control and Prevention.

单选题 The patient is at high risk of developing infection after surgery, therefore, carefully observing and _______ the status of the surgical wound following surgery is very essential.

单选题 A 16-month-old girl with encephalitis was admitted to emergency room, however, her condition ________ in spite of appropriate antiviral therapy.