presen

The villi , crypts, goblet cells and endocrine cells were presen-ted during 9 th week.

十二指肠的绒毛、肠脲 、 杯状细胞和内分泌细胞于第9周胎出现.

The usage of the Presen Pregressive Tense and the Present Participle.

写出下列动词的现在分词形式。

Methods Sixty five patients with dilated cardiomyopathy were devided into two groups according to the left ventricular thrombus presen ( A group) or not ( B group), the echocardiography of each patient was evaluated and the role of clotting factors in left ventricular thrombus formation was assessed.

方法65例扩张型心肌病患者根据有无左室血栓分成A组（无左室血栓组）和B组（左室血栓组），对两组患者的临床资料及超声心动图进行比较分析。

Children always appreciate small gifts of money.

孩子们总是把大人给的一点点钱看得很重. (本句中的gift不 可换用present)

In the examination paper Qestion 2 was a gift.

考卷中第二道题是个送分题. (本句中的gift不 可换用present)

Visitors are shown an audio-visual presen-tation before touring the cellars.

参观酒窖前，游客们先观看了有声的视频介绍。

In the first sentence PRESENT is a noun, and the accent is on the first syllable.

在第一个句子里,“present”是名词, 重音落在第一个音节.