协整检验结果分析，帮忙看一下，好不容易写上的 [推广有奖]

我现在想求时间序列REA EFFECTIVE EXCHANGE与其它6个序列之间的协整回归，做ADF检验的时候，有两个序列本身是稳定的，其它的序列是一阶差分稳定，那我能做协整分析吗？
如果再加上两个一阶差分稳定的序列以后，能做协整分析吗？
用EVIEWS 5做协整分析的时候，结果说有4个 cointegratin equations, 但后面列出来6个equation的矩阵，第六个矩阵如下

6 Cointegrating Equation(s): Log likelihood -1282.944

Normalized cointegrating coefficients (standard error in parentheses)
DOMESTIC_CREDIT FDI LOG_G_EXP_GDP LOG_OPEN LOG_TOT NET_FOREIGN_ASSET REAL_EFFECTIVE_EXCHANGE_
1.000000 0.000000 0.000000 0.000000 0.000000 0.000000 -215.2922
(54.1034)
0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.47E+08
(6.3E+07)
0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 -0.001254
(0.00028)
0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 -0.002354
(0.00103)
0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.001064
(0.00035)
0.000000 0.000000 0.000000 0.000000 0.000000 1.000000 -4.90E+10
(1.2E+10)

Adjustment coefficients (standard error in parentheses)
D(DOMESTIC_CREDIT) -0.342325 3.16E-08 26226.40 -964.3479 -5115.860 9.64E-10
(0.14910) (1.3E-08) (7018.50) (3258.39) (4763.80) (5.6E-10)
D(FDI) 13793368 -0.795907 2.85E+10 1.65E+10 1.96E+10 -0.065247
(1708856) (0.14807) (8.0E+10) (3.7E+10) (5.5E+10) (0.00642)
D(LOG_G_EXP_GDP) -5.85E-06 2.80E-14 -0.655716 -0.123927 0.337009 6.41E-14
(4.6E-06) (4.0E-13) (0.21838) (0.10138) (0.14822) (1.7E-14)
D(LOG_OPEN) 1.40E-05 -8.95E-14 0.820846 -1.354666 -1.222890 -5.60E-15
(1.4E-05) (1.2E-12) (0.63849) (0.29642) (0.43338) (5.1E-14)
D(LOG_TOT) 4.93E-06 3.61E-14 -0.485935 0.201908 -0.264693 -3.01E-14
(6.6E-06) (5.8E-13) (0.31247) (0.14506) (0.21209) (2.5E-14)
D(NET_FOREIGN_ASSET) 1.39E+09 -59.38209 -5.35E+12 -4.58E+11 -3.55E+12 -6.357936
(1.1E+08) (9.45449) (5.1E+12) (2.4E+12) (3.5E+12) (0.41023)
D(REAL_EFFECTIVE_EXCHANGE_) 0.004564 -1.18E-10 -129.7725 23.77051 219.8080 -1.14E-11
(0.00339) (2.9E-10) (159.499) (74.0484) (108.260) (1.3E-11)

那协整回归方程是否应该 REAL EFFECTIVE EXCHANGE=-215.99 DOMESTIC CREDIT+(1.47E+08)FDI-0.001254LOG G-EXP-GDP-0.002354LOG OPEN+0.001064LOG TOT+(-4.9E+10)NET FOREIGN ASSET? 然后怎么看哪几个序列不显著呀？因为只有4个协整的，肯定有2个应该剔出来