电力系统中电源功率出现缺额时，系统（）将下降。

患者女性，25岁，分娩时大量出血，失血约1000ml，测血压90／60kPa，病情危重。

需紧急输血此时患者最好用下列哪种输血方法（）

A.常规输血

B.加氧输血

C.加压输血

D.置换输血

E.血浆输注

男，2岁，体重9kg，入托体检时发现心脏杂音前来就诊，曾患肺炎3次，有喂养困难史，无晕厥、抽搐史。

诊断首先考虑（）

A.先天性心脏病

B.风湿性心脏病

C.病毒性心肌炎

D.心肌病

E.营养不良

When you do some minor image editing (修正) on your computer screen, you may make some mistakes, so from time to time you’d click undo (撤消).

There are things in life we cannot undo as easily and completely as we would with our computer files. A wrong turn, a hurtful word said to a loved one, a bad move — these we all commit as we walk our life’s journeys, no matter how careful we are in our steps. Once committed, we can no longer undo many of these mistakes, especially because unlike with our computer documents, each thing we do and say has vast impact as they involve not just us — the file that we are working on — but also others, the unopened files and computer programs in our system.

So I guess our life’s mistakes are not like our pencil scrawls (潦草书写) that can be effectively corrected with an eraser, or errors on our computer works that can be undone with an undo button. But there are effective and reliable tools we can use—APOLOGY and FORGIVENESS. Simply click the APOLOGY button when you have committed a mistake that has hurt a loved one and the words “I’m Sorry” will flash on the other person’s screen. But, you have to be truly sorry and you must be prepared not to commit the same mistake again for your APOLOGY to work. Sincerity is definitely a necessary part.

When someone clicks the APOLOGY button and the words “I’m sorry” flash on your screen, all you have to do is click back the FORGIVENESS (原谅) button. It means that you have wholeheartedly accepted the other person’s APOLOGY. But not only that. You also have to click it when someone has sent you back the message “It’s okay. Forget about it.”. It means that you are also forgiving yourself for your mistake; that you won’t keep feeling so bad having committed it.

And lastly, don’t forget to keep clicking the SAVE button. Going through the whole process of editing—of doing and undoing, of apologizing and forgiving — is useless if you fail to save the LESSON for future use. Let the saved file be a reminder of the healing process you once went through to make yourself better; for you not to forget the lesson; and for others to access and learn from.

小题1:Which of the following is TRUE?

A．However careful we are, we still make mistakes in life.

B．Things we do and say can affect computer programs in our system.

C．We can undo life’s mistakes if we are careful enough.

D．An eraser is an effective tool for our computer works.小题2: The APOLOGY button should be clicked when ________.

A．one wants to make the computer work perfectly

B．one’s mistakes won’t influence others any more

C．one is actually saying “I’m sorry”

D．one won’t make the same mistake again小题3:What does the underlined word “it” in Paragraph 4 refer to?

A．The UNDO button.

B．The APOLOGY button.

C．The SAVE button.

D．The FORGIVENESS button.小题4:We need to click the SAVE button in life because ________.

A．we want to go through the whole process of editing

B．we need to learn a lesson from the past mistakes

C．we want to make the healing process faster

D．we need to use the computer properly

减免税的形式有多种，下列属于税率式减免的是( )。

A．零税率
B．跨期结转
C．减半征收
D．核定减免率

如图为果蝇的原始生殖细胞示意图。图中A、a、B、b、W

分别表示控制不同性状的基因。据图回答问题：

若单以基因W来看，形成配子时按（）定律遗传，产生的配子类型有（）。