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问题
单项选择题 A1型题
梗阻性脑积水可继发于（）
A.蛛网膜下隙出血
B.脑萎缩
C.肿瘤
D.脑白质病
E.腔隙性脑梗死
答案
参考答案：
C
补全对话，情景问答
选择下列句子的正确答语。
( )1. Is she Gina?
( )2. Is this your sister?
( )3. Is she your aunt or your mother?
( )4. Are these your sisters?
( )5. Is he your father?
A. Yes, he is.
B. No, she isn't.
C. My mother.
D. No, it isn't.
E. Yes, they are
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解答题
用你喜欢的方法算：
1
4
+
3
4
×
1
3
5
7
×
1
4
+
3
4
×
5
7
7
8
×9+
7
8
10
21
÷
25
12
×
7
8
（
3
5
+
3
4
）÷
3
5
3
7
÷
7
11
+
4
7
×
11
7
．
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