基坑验槽中遇持力层明显不均匀时，应在基坑底普遍进行（）。A.观察 B.钎探C.轻型动力触探 D.静载试验

参考答案：C

应在基坑底普遍进行轻型动力触探的情形包括：（1)持力层明显不均匀；（2)浅部有软弱下卧层；（3)有浅埋的坑穴、古墓、古井等，直接观察难以发现时；（4)勘察报告或设计文件规定应进行轻型动力触探时。

Which of the following assumptions about vocabulary learning contradicts the modern language teaching theories?

To distinguish sounds, students are encouraged to practice __________.

The sense relation of the following pair of sentences (see X and Y) is __________.X. Mar)" has been to Japan. Y. Mary has been to Asia,

What is the appropriate response to"It's been such a wonderful lecture. Thank you very much"?

__________ I admire David as a poet, I don't like him as a man.

If the appliance is defective, write directly to the manufacturer__________complain to your local consumer protection association.

Tred insists he is__________ , but I'm sure he believes in some supreme beings.

Over the past ten years, China has__________a series of great changes in its infrastructure and economy.

At first, Claire refused to admit that he had stolen, but when he was shown the videotape he__________ and admitted everything.

自我纠错是语言学习的有效方法之一。课堂教学过程中教师可以通过哪些方式引导学生自我纠错?写出四种方式，并各举一例说明。

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