下列离子方程式错误的是() A.硫化钠溶液中加生产方式足量盐酸:S2—+2H+→

题型:选择题

问题:

下列离子方程式错误的是                                         (   )

A.硫化钠溶液中加生产方式足量盐酸:S2—+2H+→H2S↑

B.向碳酸氢钙溶液中开始滴入氢氧化钠溶液: Ca2++2HCO3+2OH→CaCO3↓+2H2O+CO32—

C.用硫酸铜溶液吸收硫化氢气体:Cu2++H2S→CuS↓+2H+

D.向浓氨水中开始滴入硫酸铝溶液:A13++3NH3+H2O→A1(OH)3↓+3NH4+

考点:离子方程式
题型:选择题

公司章程规定股东首次出资额为各自认缴出资额的1/2,其余部分应自公司成立之日起一年内缴足的规定是否合法

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It was lunch time. Mike was in the garden with Linda. Suddenly, two aliens (外星人) arrived! “Wow! Aliens!” They were so excited that they screamed loudly.

“Hello, friends!” The two aliens came out from a small flying machine.

“Hi! Come and have lunch with us.” Mike said.

“Do you like earth food?” Linda asked.

“We don’t know. Let’s have a try,” the aliens said.

“What’s this? Is it a phone?” the tall alien asked.

“No, it’s a banana,” Mike said.

The tall alien took a bite (咬了一口), “Yuke! I don’t like bananas.”

“What’s this? Is it a ball?” the short alien asked.

“No, it’s an egg,” Linda said.

The tall alien took a bite, “Yuke! I don’t like eggs.”

“What’s this? Is it a hat?” the tall alien asked.

“No, it’s a lunchbox!” Mike said.

The tall alien took a bite, “Yum! I like lunchboxes!”

小题1:Where were Mike and Linda?

A.In the garden.

B.In the park.

C.In the zoo.

D.On the playground.小题2:What does the underlined word “screamed” mean?

A.跳舞

B.尖叫

C.挥手

D.站起来小题3:The tall alien thought the banana was a ________.

A.ball

B.hat

C.toy

D.phone小题4:Which of the following is the right order (顺序) for what the aliens ate?

A.A banana→An egg→A lunchbox.

B.An egg→A banana→A lunchbox.

C.An egg→A lunchbox→A banana.

D.A banana→A lunchbox→An egg.小题5: Which of the following is True?

A.The short alien tasted many kinds of food.

B.Mike felt very scared when he saw the aliens.

C.The aliens didn’t think the earth food tasted delicious.

D.The aliens came to the earth in a big flying machine.

题型:选择题

原发性血小板减少性紫癜导致出血的原因是()

A.血小板破坏减少

B.血小板数量减少

C.血小板功能减少

D.毛细血管通透性增加

E.毛细血管脆性增加

题型:选择题

24分法计算1、2两个月的截止5月底时的满期保费,其中1月份签单净保费为120万元,2月份签单净保费有168万元。合计满期保费()万元。

A.75

B.82

C.94

D.116

题型:选择题

急性心肌梗死病人急性期护理措施中,不正确的一项是()

A.勤翻身,以防压疮

B.给予少量清淡流质饮食

C.限制探视

D.持续鼻导管吸氧,每分钟4~6L

E.防止情绪激动

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