
【名词&注释】
原癌基因(proto-oncogene)、红树林(mangrove)、组织细胞(histocyte)、防护林、癌细胞(cancer cell)、老年斑(senile plaque)、生命现象(life phenomenon)、同步进行(carried out simultaneously)、维管形成层(vascular cambium)、普遍存在(ubiquity)
[单选题]红树林是由红树科植物组成的天然海岸防护林。( )
A. 正确
B. 错误
查看答案&解析
举一反三:
[单选题]How does abay make money from its website?
A. By bringing callers together.
B. By charging for each sale
C. By listing items online
D. By making e-photos.
[单选题]侧根是维管形成层(vascular cambium)产生的。( )
A. 正确
B. 错误
[单选题]
A. warning
B. ringing
C. calling
D. yelling
[单选题]细胞的分化、衰老和凋亡是普遍存在(ubiquity)的生命现象(life phenomenon)。下列有关叙述正确的是
A. 人体各种组织细胞的衰老是同步进行(carried out simultaneously)的
B. 人的早期胚胎有尾,尾部细胞随着发育逐渐凋亡
C. 细胞癌变是细胞高度分化的结果
D. 皮肤上的“老年斑”是细胞凋亡的产物
[单选题]39_____
A. attach
B. pay
C. link
D. apply
[单选题]What is the relationship between the two speakers?
A. Couple
B. Friends
C. Classmates
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