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【单选题】
1 8 .某溶液可能含有Cl - 、SO 4 2- 、CO 3 2- 、NH 4 + 、Fe 3+ 、Al 3+ 和K + 。取该溶液100mL,加入过量NaOH溶液,加热,得到0.02mol气体,同时产生红褐色沉淀;过滤,洗涤,灼烧,得到1.6g固体;向上述滤液中加足量BaCl 2 溶液,得到4.66g不溶于盐酸的沉淀。由此可知原溶液中( )A.
至少存在5种离子
B.
Cl - 一定存在，且c（Cl）≥0．4mol/L
C.
SO 4 2- 、NH 4 + 、 一定存 在，Cl - 可能不存在
D.
CO 3 2- 、Al 3+ 一定不存在，K + 可
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【单选题】甲向银行借款1万元，甲的朋友乙在借款合同上作为保证人签字，那么乙需为甲的借款承担何种责任？（ ）
A.
一般保证责任
B.
连带责任保证
C.
共同责任
D.
不承担责任
【单选题】听力原文：M: Have you picked up your ID card from the office yet? W: No, the camera for taking photos was broker. Q: Why hasn't the woman gotten her ID card? (13)
A.
She was unable to have her picture taken.
B.
She has not chosen a picture for it.
C.
She had broken her camera.
D.
She had gone to a photography class instead.
【简答题】活性染料的结构可以用下列通式表示：S-D-B-Re，其中，D代表（），B代表（），Re代表（）。
【单选题】What does the woman think about her lifestyle?
A.
She has got a lot of trouble with it.
B.
She feels it is unnatural.
C.
It’s gotten easier with time.
【单选题】2
A.
she likes travelling and meeting various kinds of people
B.
she enjoys the process of helping others
C.
she has gotten a qualificatin certificate
D.
she has all the practical experience to handle emergencies
【简答题】活性染料的结构可以用下列通式表示:S-D-B-Re,其中,S代表 , D代表 ,B代表 ,Re代表 。
【简答题】翻译：bad stowage=improper stowage：A. “积载不良/不当”
【单选题】] A cargo that has a stowage factor over 40 is know as a ______.
A.
hygroscopic cargo
B.
measurement cargo
C.
stowage cargo
D.
weight cargo
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