单项选择题


A．sure of
B．careless about
C．pleased with
D．disappointed at
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单项选择题
Why can't doctors convince the sufferers that there is nothing wrong
A．Because the doctors can't cure the minor diseases.
B．Because the doctors don't assure them of that.
C．Because the sufferers are deaf and cannot hear what the doctors say.
D．Because lack of absolute guarantee makes the patients doubtful.
单项选择题
The problem becomes worse due to ______.
A．the increasing number of patients
B．the widespread medical knowledge on the Internet
C．the patients' regular visits to doctors that occupy too much time
D．new diseases and symptoms emerge constantly
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