Recently some Japanese have been trying to make conflicts with China, ________ effects we are greatly concerned.

A．to whose

B．about whose

C．to which

D．about which

某人牙龈及全身皮肤出血，就医。化验：血红蛋白10g/L，红细胞4.5×10¹²/L，白细胞3.0×10⁹/L，血小板20×10⁹/L。骨髓检查：增生不良，应考虑()。

A．急性再障

B．慢性再障

C．急性白血病

D．特发性血小板减少性紫癜

E．脾功能亢进