“高粱叶子青又青，九月十八来了鬼子兵。先占火车站，后占北大营”。这一歌谣所反映的历史现象的影响是：（ ）
A．中国东北沦为日本殖民地
B．全民族抗战局面形成
C．抗日战争全面爆发
D．华北日益殖民地化
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能通过胎盘，又能与葡萄球菌A蛋白（SPA）结合的免疫球蛋白是（）
A.IgA
B.IgD
C.IgE
D.IgG
E.IgM
| 完形填空。 | ||||
| I live in Albuquerque, New Mexico. I used to give a lot of money to the homeless,feeling 1 for them. But as time passed, I became a mom with no home, a huge 2 , and hardly any income. As a result, I 3 giving money to the people on the side of the road and became very 4 . Things started to change for me 5 . I had a home, a backyard for my daughter,and plenty of food, and I started to 6 myself out of debt. One day we saw a homeless person with the 7 , "Will work for food." I 8 . My daughter commented. "Mommy, you used to always give money to those people in 9 ." I replied, "Honey, they just use that money for 10 , or other bad things." She didn't respond. 11 when I said that, I didn't feel right. Three days later, I was driving to 12 my daughter from school. A man was standing on the corner, and something deep 13 me said,"Just help the guy." So I 14 down my window, and he ran over excitedly. He said,"God bless you, I only need 77 cents." I 15 into my ashtray (烟灰缸) and strangely enough, there 16 three quarters and two pennies. I picked them up and gave them to him. He 17 with joy and tears in his eyes."Wow, you just made it 18 for me to see my mom for Christmas! Thank you so much; the 19 that had this great sale is leaving in 20 minutes!" It was a moment I'll 20 forever. I think that man won't forget it either, but I was the one who got the best gift in life-GIVING. | ||||
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美国移民的第一阶段发生在何时？（）
A.自英国向北美移民至20世纪初
B.20世纪50年代至20世纪90年代
C.20世纪初至20世纪50年代
D.20世纪初至20世纪50、60年代
对不需要逮捕、拘留的犯罪嫌疑人刑事传唤的时间最长不得超过（）。
A、24小时
B、12小时
C、48小时
D、8小时
我国规定用人单位基本医疗保险的缴费率控制在企业工资总额的( )左右。
A．4%
B．5%
C．6%
D．7%