【名词&注释】
原产地(origin)、根状茎(rhizome)、分子式(molecular formula)、离子方程式(ionic birefringence equation)、购物袋(shopping bag)、物美价廉、生产厂(production factory)
[单选题]下列离子方程式正确的是
A. 向盐酸中滴加氨水：H+ + OH- = H2O
B. Fe(OH)3溶于氢碘酸：Fe(OH)3 + 3H+ = Fe3+ + 3H2O
C. 铜溶于稀硝酸：3Cu + 8H+ + 2NO3- = 3Cu2+ + 2 NO ↑+ 4H2O
D. 向Na2S2O3溶液中通入足量氯气：S2O32－＋2Cl2＋3H2O＝2SO32－＋4Cl－＋6H＋
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举一反三：
[单选题]近期研制出利用玉米叶片加工、编织购物袋的技术，这种购物袋易分解且物美价廉。据此完成1~3题。1.该种购物袋的生产厂(production factory)应该近
A. 原料产地 B．销售产地
B. 能原产地 D．研发基地
[单选题]听第l0段材料，回答第17至20题。
17 What is the talk mainly about?
A. The history of the school
B. The courses for the term
C. The plan for the day
[单选题]In the girl’s long painstaking training process, _____.
A. her adviser forms a primary challenging force to her success
B. her writing turns into an automatic pattern of performance
C. she acquires the magic of some great achievements
D. she comes to realize she is “hard-wired” to write
[单选题]-----Ken, , but your TV is going too loud.-----Oh, I’m sorry. I’ll turn it down right now.
A. I’d like to talk with you B． I’m really tired of this
B. I hate to say this D． I need your help
[单选题]贝母属(Fritillaria)数种均以( )入药。
A. 鳞茎
B. 块茎
C. 球茎
D. 根状茎
[单选题]慈姑有三种不同形状的叶，具生态的异形叶性。( )
A. 正确
B. 错误
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