【单选题】药物对于健康人并没有直接的价值,而对于病人则具有直接的价值。这说明价值具有()
【单选题】We can infer from the passage that______.
A.
concentrations of greenhouse will become worse
B.
Concentrations of greenhouse will become better
C.
generally there is no rain in Antarctica
D.
the North Pole is no longer covered with ice
【单选题】一台完整的计算机硬件系统是由存储器、输入/输出设备和( )组成。
【简答题】根据注意的功能,可以把注意分为: 、 、 。
【单选题】Saccharomyces can stand far higher concentrations of ethanol than other microorganisms.
【单选题】We can infer from the passage that ______.
A.
concentrations of greenhouse will become worse
B.
concentrations of greenhouse will become better
C.
generally there is no rain in Antarctica
D.
the North Pole is no longer covered with ice