高密度脂蛋白胆固醇的参考范围是 A．3.1～5.7mmol/L B．0.56～1.7

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问题单项选择题

高密度脂蛋白胆固醇的参考范围是

A．3.1～5.7mmol/L
B．0.56～1.7mmol/L
C．1.9～3.61mmol/L
D．1.04～1.55mmol/L
E．2.4～3.7mmol/L

答案

参考答案：D

句型转换

小题1:It took me about one hour to do my homework last Monday. (改为同义句)

I _______ about one hour ______ my homework last Monday.

小题2:If you are quick, you will get to school on time.. (改为同义句)

quick, you’ll be late for school.

小题3:The giant panda is 100 kilograms (划线部分提问)

is the giant panda.

小题4:We won the match at last because we worked hard. (改为同义句)

We won the match at last ________ ________ our hard working.

小题5:The news is very good. (改为感叹句)

______ _______ news it is!

选择题

如图所示的电路图中，变压器是理想变压器，原线圈匝数n₁=600匝，装有0.5A的保险丝，副线圈的匝数n₂=120匝．要使整个电路正常工作，当原线圈接在180V的交流电源上时，则副线圈（　　）

A．可接耐压值为36V的电容器

B．可接“36V　40W”的安全灯两盏

C．可接电阻为14Ω的电烙铁

D．可串联量程为3A的电流表测量其电路的总电流