单项评价进行预测时，预测值未包括环境质量现状值(即背景值)时，评价时注意应( )环境质量现状值。
A．叠加 B．评估 C．考虑 D．监测
参考答案：A
出现柏油样便，提示消化道出血量在（）
A．5～20ml
B．30～40ml
C．50～70ml
D．80～100ml
E．120ml以上
根据首字母提示写单词
1. S_______l0th is Teachers' Day.
2. J_______ 1st is Children's Day.
3. M_______1st is May Day.
4. Christmas Day is on D_______25th.
5. New Year's Day is on J_______1st.
