应用有效数字运算规则计算，13.64×4.4×0.3244=（）。 A.19.469

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问题单项选择题 A1/A2型题

应用有效数字运算规则计算，13.64×4.4×0.3244=（）。

A.19.469

B.19.47

C.19.50

D.19.0

E.19

答案

参考答案：E

解析：有效数字乘除运算保留有效数字最少的位数，4.4为两位。

听力题

单词拼写

小题1:Modern people must learn to live in h_______________ with nature.

小题2:With a good state of mind, she soon a_______________ herself to the new environment.

小题3:It’s a local c_____________ for girls to marry young.

小题4:The government is trying to raise public a_______________ about the protection of cultural heritage.

小题5:Reading widely helps to e_______________ your vocabulary when learning a second language.

小题6:Even though we’re working around the clock, I’m afraid the _____________ (最后期限) is hard to meet.

小题7:A lazy man will never a_______________ (完成) anything that’s meaningful.

小题8:Although we are close friends, I don’t want to show my _______________ (关心) for her before so many people.

小题9:After entering the country _______________ (非法地)，he settled down in a remote area and found work in a small restaurant.

小题10:It’s _______________ (令人耳目一新的) to have such a funny and humorous partner.

填空题

修拉以《（）》和《（）》两幅作品完成了点彩派艺术的创立阶段。