______ he can quickly seize the chance of business.
A. Having been well informed
B. To be well informed
C. Having well informed
D. To have been well informed
查看答案
According to the context, the phrase "Christmas tidings" (Line 2, Para. 1) means ______.
A. Christmas cards tied with ropes
B. e-greetings on Christmas
Christmas stockings
D. Christmas trees
神经衰弱可出现
A. 呼吸停止
B. Cheyne-Stokes呼吸
C. Kussmaul呼吸
D. 抑制性呼吸
E. 叹息样呼吸
如果表达式-x/y中的“--”和“/”是作为友元函数重载的运算符，采用运算符函数用格式，该表达式还可表示为( )。
A. operator/(x.operator--()，y)；
B. operator/(operator--(x)，y)；
C. operator--().operator/(y);
D. operator/(operator--(x))；
一侧胸腔大量积液可出现
A. 桶状胸
B. 气管偏移
C. 混合性呼吸困难
D. 一侧叩诊鼓音
E. 杵状指
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