The _________ for the students today is to write an essay.

Th(NO3)4+4NaOH→

Th(NO3)4+NaOH→

I ______ my teacher th the sTruet yesterday.

A．met

B．watched

C．looked at

A.Th细胞和B细胞

B.巨噬细胞和Th细胞

C.树突细胞和Th细胞

D.NK细胞和肿瘤细胞

E.Tc细胞和肿瘤2细胞

已知，则：T_h=______mm；T_s=______mm；T_f=______mm；X_max=______mm；Y_max=______mm。

Th author's attitude towards women taking a career is _______.

A．criitical.

B．positive.

C．neutral.

D．realistic.

What indicates the success of the experiment about the two robot arms and Belle？(the th paragraph)

Which director is giving the opening speech at th~ Annual General Meeting？

A．Sales

B．Personnel

C．Finance

In the eyes of the author, Thomas Bevill was ______.

A．modest

B．clever

C．realistic

D．all of the above