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【单选题】
This kind of chemical is dangerous and you’d better keep it out of the of children.A.
hand
B.
reach
C.
space
D.
order
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反馈参考答案：
举一反三
【单选题】Silk‘s strength comes from its weak hydrogen bonds working together. 查看材料
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】A number of different types of bonds maintain the structure of proteins. These include disulphide, hydrogen and ionic bonds, as well as hydrophobic interactions. Some of these are stronger than others...
A.
disulphide bonds
B.
hydrogen bonds
C.
hydrophobic interactions
D.
ionic bonds
【单选题】疥疮的临床表现为
A.
病因不明确，以风团损害为主。
B.
病因明确可见隧道，丘疹，结节。
C.
病因不明确，多形态损害。
D.
病因明确，可见红斑、肿胀 水疱某一时期以一种皮损为主。
【简答题】试述疥疮的临床表现和治疗方案。
【单选题】In which process are hydrogen bonds broken?
A.
H 2 (l) → H 2 (g)
B.
NH 3 (l) → NH 3 (g)
C.
2HI(g) → H 2 (g) + I 2 (g)
D.
CH 4 (g) → C(g) + 4H(g)
【简答题】简述疥疮的临床表现。
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