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【单选题】
材料的耐水性可用( )表示A.
亲水性
B.
憎水性
C.
抗渗性
D.
软化系数
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反馈参考答案：
举一反三
【单选题】按照GB/T261方法测一油品闭口闪点，预期闪点为70℃，在预计闪点前20℃时，升温速度控制在（），并要每经（）进行一次点火试验。
A.
1～2℃/min，2℃
B.
1～2℃/min，1℃
C.
2～3℃/min，2℃
D.
2～3℃/min，1℃
【单选题】按照GB/T261方法测一油品闭口闪点,预期闪点为70°C,在预计闪点前20°C时,升温速度控制在( ),并要每经( )进行一次点火试验。
A.
1—2 ℃/min,2℃
B.
1—2℃/min,1℃
C.
2--3℃/min,2℃
D.
2--3℃/min,1℃
【简答题】家具;寝具、褥垫、弹簧床垫、软坐垫及类似的填充制品是第___类、___章的标题。
【简答题】“家具“是第()章的标题。
【多选题】Which of the following statements about the definition of 'gene therapy' by Farlex Partner Medical Dictionary are correct?
A.
Gene therapy has several applications in oncology, including the transduction into malignant tumor cells of genes encoding cytokines or coactivation factors to augment host antitumor responses and the transfer of tumor suppressor genes, particularly p53 (the most commonly mutated gene found in human cancers), to enhance the sensitivity of malignant cells to chemotherapeutic agents.
B.
Use of viral vectors is associated with a risk of localized and systemic inflammation mediated by cytokines, which can be fatal.
C.
Germ-line therapy inserts specific genes directly into the DNA of sperm, egg, or embryo, producing heritable alterations of the genome.
D.
Progress has been made in treating several inherited disorders, including severe combined immunodeficiency, cystic fibrosis, and hemophilia
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