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【单选题】
下列有关细胞器的叙述,正确的是A.
所有细胞中都存在内质网
B.
线粒体中生成的产物有丙酮酸、二氧化碳和水
C.
叶绿体是所有生物进行光合作用的场所
D.
在植物细胞有丝分裂的末期体活动加强
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【简答题】C Arthritis, stroke, osteoporosis(骨关节炎), heart disease and dementia are what we’ve got to look forward to in old age. But conditions like these don’t have to be impossible to avoid, says New Zealand c...
【简答题】What is the treatment for osteoporosis?
【单选题】What is the English translation for 骨折愈合
A.
healing of fractures
B.
healing of osteoarthritis
C.
healing of osteoporosis
D.
healing of ligaments
【单选题】— Do Lucy and Lily have long hair? — Yes, they do. But Maria _____ long hair. [ ]
A.
don't have
B.
doesn't have
C.
has
D.
doesn't has
【单选题】Jack has than his brother. [ ]
A.
long hair
B.
long hairs
C.
longer hair
D.
longer hairs
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