【单选题】救生艇备品中,有探照灯1具,可连续工作不少于_______。
【单选题】The author writes the passage to
A.
analyze the origin of morality.
B.
make comments on two books.
C.
explore some animal behaviors.
D.
present some intriguing findings.
【多选题】以下是维持蛋白质胶体稳定的两个主要因素是()
【单选题】According to the author, Allan Brandt's attitude towards the cigarette reflected in his book is one of
【单选题】Who is the author of Records of Music which was a great music theoretician?
【单选题】As to the views from the Democrats and Republicans, the author______.
A.
is supportive of both sides
B.
takes an detached attitude
C.
favors Democrats' views
D.
favors the Republicans' view