民航人员的忍耐力和情绪兴奋不能太低，同时要具备可塑性
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胎膜包括
A. 绒毛膜、羊膜、卵黄囊、体蒂和脐带
B. 绒毛膜、羊膜、卵黄囊、尿囊和脐带
C. 绒毛膜、羊膜、包蜕膜、尿囊和脐带
D. 绒毛膜、壁蜕膜、卵黄囊、尿囊和脐带
E. 绒毛膜、羊膜、卵黄囊、尿囊和基蜕膜
正常妊娠至分娩时羊水的量是
A. 2000-2500ml
B. 3000-4000ml
C. 250-500ml
D. 500-1000ml
E. 1000-1500ml
Task 1 Discuss the following questions after reading the passage.1. Why is Internet security becoming more and more important?2. What're the measures to ensure the security of online banking?
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